Alternatives to Sendmail
Compare Sendmail alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Sendmail in 2026. Compare features, ratings, user reviews, pricing, and more from Sendmail competitors and alternatives in order to make an informed decision for your business.
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1
Greatmail
Greatmail
Dependable cloud based email hosting with spam filtering, antivirus protection, generous storage and webmail. Compatible with Outlook and all other POP3/IMAP clients. High volume SMTP service for responsible senders. Outbound relay service for transactional messages, email marketing campaigns, newsletters and other applications. Dedicated email servers, clustering and multiple IP load balancing for high volume senders. Fixed monthly cost with unlimited sending and reputation monitoring. Greatmail is an email service provider (ESP) specializing in business class email hosting, SMTP hosting and email servers. For ISPs, application programmers and cloud developers, we also provide custom solutions including dedicated IP servers and process specific, load balanced configurations with multiple servers. -
2
Twilio Messaging
Twilio
Twilio's Messaging API is a powerful tool that enables businesses to integrate messaging capabilities into their applications seamlessly. It offers a stable RESTful API that allows developers to send and receive SMS, MMS, and WhatsApp messages globally. With Twilio's Messaging API, businesses can automate and scale their communications, ensuring messages are delivered over the preferred channels of their customers. The API supports a variety of sender types, including long codes, short codes, toll-free numbers, and alphanumeric sender IDs, providing flexibility in how messages are sent. Additionally, Twilio's Messaging Services feature allows companies to group global senders and enable intelligent sending, automating sender selection, and handling compliance regulations. The API also supports inbound webhooks, allowing businesses to handle responses programmatically and engage in two-way conversations with their customers.Starting Price: $0.0079 per message -
3
qmail
qmail
qmail is a secure, reliable, efficient, simple message transfer agent. Security isn't just a goal, but an absolute requirement. Mail delivery is critical for users; it cannot be turned off, so it must be completely secure. qmail's straight-paper-path philosophy guarantees that a message once accepted into the system, will never be lost. qmail also optionally supports maildir, a new, super-reliable user mailbox format. Maildirs, unlike mbox files and mh folders, won't be corrupted if the system crashes during delivery. Even better, not only can a user safely read his mail over NFS, but any number of NFS clients can deliver mail to him at the same time. qmail is vastly smaller than any other Internet MTA. Other MTAs have separate forwarding, aliasing, and mailing list mechanisms. qmail has one simple forwarding mechanism that lets users handle their own mailing lists. -
4
Dovecot
Dovecot
Dovecot is an excellent choice for both small and large installations. Dovecot is among the best performing IMAP servers while still supporting the standard mbox and Maildir formats. The mailboxes are transparently indexed, which gives Dovecot its good performance while still providing full compatibility with existing mailbox handling tools. Dovecot is standards compliant. Dovecot passes all IMAP server standard compliancy tests while most other servers fail many of them. Dovecot’s indexes are self-optimizing. They contain exactly what the user’s client commonly needs, no more and no less. Dovecot is self-healing. It tries to fix most of the problems it notices by itself, such as broken index files. The problems are however logged so the administrator can later try to figure out what caused them. Dovecot tries to be admin-friendly. Common error messages are made as easily understandable as possible.Starting Price: Free -
5
MailerQ
MailerQ
MailerQ is a high-performance on-premise Mail Transfer Agent (MTA) for delivering millions of emails per day. It is built with a strong focus on performance, ease-of-use, and insights. The MTA comes packed with an intuitive Management Console, REST API, and other functionality necessary for every serious sender to retain and improve their sender reputation and deliverability rates. That’s why it's increasingly becoming the preferred solution of choice for senders of all kinds, from Email Service Providers and e-commerce platforms to banks and government institutes. The management console allows for real-time insights in delivery attempts and results, queues, error logs and a lot more per MTA, IP, target and even per customer, campaign or message type. Response patterns allow you to classify bounces, process feedback loops and adapt MTA behavior based on server responses. This will help you maximize your email deliverability and sender reputation.Starting Price: €10,000 one-time payment -
6
ProDMARC
PROGIST
Attackers use spoofed emails to phish your customer’s & employee’s credentials. Hackers send forged invoices through mails to your partners & suppliers. Attackers send malicious mails containing malware like Ransomware. Attackers sell illegal goods like weapons or drugs using mail by spoofing trusted brands. DMARC is an email validation protocol built on 2 globally accepted authentication protocols namely SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). SPF is an email authentication protocol that allows the receiving mail server to check if the sender mail server is authorized to send emails on behalf of the organization. DKIM is a public and private cryptography based authentication protocol designed to ensure that messages aren’t altered in transit between the sender & receiver mail server.Starting Price: $100 per year -
7
SMTP Provider
SMTP Provider
Experience the next level Email Marketing at an affordable price. Use a dedicated IP address to increase your sender reputation and avoid blacklisting of your IP due to someone else’s actions. Show that it’s really your own company and domain sending the message, and minimize the amount of messages that are marked spam by using the special cryptographic signatures SPF and DKIM. Our SMTP servers send your emails using secure SSL connection. Moreover, it's lightning fast. For each mailing list, you can discover the amount of messages sent out, the number of conversions made and links clicked, and many other details. Our SMTP service generates sending reports and delivery error reports. All reports can be downloaded to your computer. Your mailings won’t be sent to any addresses on the list of recipients who have unsubscribed, even if they are on a mailing list. Make sure that your emails are delivered to the inbox and not the spam folder. -
8
ScaledMail
ScaledMail
ScaledMail is a specialized email infrastructure platform designed to support large-scale cold email outreach campaigns while maintaining high deliverability and sender reputation. It provides businesses with preconfigured email infrastructure that allows them to send large volumes of outbound emails without needing to manually set up domains, mailboxes, or technical authentication systems. Instead of building and maintaining dozens of individual email accounts, users receive ready-to-use inbox environments distributed across multiple domains, which helps distribute sending volume and reduce the risk of emails being flagged as spam. It automates complex technical requirements such as DNS configuration and email authentication protocols, including SPF, DKIM, and DMARC, ensuring messages are properly verified and more likely to reach recipients’ primary inboxes. -
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GoDMARC
Neuailes Global Technologies
Actively block phishing Boost Email Deliverability Get Visibility - DMARC. To secure your inbox and boost email deliverability check your domain status below. What is DMARC? DMARC is an email authentication protocol designed to offer email domain owners the ability to safeguard their dedicated domain from unauthorized usage. DMARC at a Glance Professional DMARC Services. The most commonly used technical term DMARC is the abbreviation for Domain-based Message Authentication Reporting & Conformance. It is a modus operandi that makes the use of Sender Policy Framework (SPF) and Domain Keys Identified Mail (DKIM) in order to identify the legitimacy of a message in the form of an email. Both SPF and DKIM play an important role and DMARC requires them for the specific purpose. It aims to improve and monitor domain protection from the varied fraudulent emails send by fraud minds active in the different corners of the world. With DMARC you can instruct receiving serversStarting Price: $144 -
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Photon Console
Photon Console
Photon Console is an email delivery platform built on the cloud that helps businesses communicate effectively with their target audience by providing them with a dependable email transaction & marketing infrastructure. The platform allows users to send emails via SMTP relay or send emails using an API for OTP, password reset, notification purposes, newsletters and marketing campaigns. As part of this platform, users receive real-time statistics about email delivery, bounce-back reports, as well as ability to authenticate their domain names using SPF, DKIM and DMARC records thereby increasing inbox placement ranks and sender reputation. Photon Console was originally designed for new businesses, SaaS businesses, and small to medium-sized businesses that are growing fast; it provides a robust email infrastructure while also providing easy access through a simple dashboard, so customers can easily monitor performance of their email communications and manage them efficiently. -
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Libraesva LetsDMARC
Libraesva
Libraesva DMARC Protection is an email authentication and domain protection solution designed to prevent spoofing, phishing, and unauthorized use of corporate email domains. It simplifies the deployment and management of DMARC, SPF, and DKIM by providing a guided setup and centralized control that does not require deep DNS expertise. Through its intuitive dashboard, organizations gain real-time visibility into who is sending emails on behalf of their domain, including authentication success rates, failures, and traffic sources. It aggregates and analyzes detailed RUA reports from ISPs, enabling administrators to identify legitimate senders, detect misconfigurations, and block malicious activity. LetsDMARC also allows organizations to gradually enforce stricter DMARC policies, moving from monitoring mode to quarantine or reject actions to stop fraudulent messages. -
12
OutboundSMTP
OutboundSMTP
DKIM Signing improves the inbox placement of mailbox providers like Gmail, Office365. Multiple Servers in the USA and Europe for increased reliability. No more headaches of managing and maintaining your own email server and IP reputation. Create SPF and DKIM records for your domain names, no prior experience required. If you are suffering from an IP blacklisting our SMTP relay service can solve your reputation problems. 24×7 technical support via phone, chat or email. We are here to ensure your mail gets delivered. you’ll be able to deliver your mail reliably to the inbox. We optimize our sending routes and closely monitor our IP reputations to ensure you the best possible service. We have a Zero Spam Policy that allows us to block or restrict messages that would damage our reliability or the reputation of our customers. You may send from an unlimited number of “From” addresses or domains after you have verified your domain ownership via DNS.Starting Price: $4 per 2,500 messages -
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MailerSend
MailerSend
MailerSend is a transactional email and SMS service designed for developers to work faster and smarter. A drag & drop builder and dynamic templates enable anyone at any skill level to create personalized transactional emails, while our SMS templates help you create professional transactional SMS messages. MailerSend’s advanced infrastructure scales with your sendings, while the latest security protocols protect your sender reputation. Plus, you can integrate your email sending and tracking in your apps using SMTP or a flexible email API. Built by deliverability experts, and with the inbuilt email verification tool, you can rest easy knowing your messages will be delivered and avoid spam folders, while dedicated IPs are available for high-volume senders. Plus, inbound routing enables your customers to interact with your messages, sparking conversations and increasing engagement. Get started for FREE with 500 emails, then upgrade for as little as $7/month for up to 5000 emails.Starting Price: Free -
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Valimail
Valimail
Protect your company from phishing and BEC with industry-leading DMARC technology. Valimail is a pioneering, identity-based, anti-phishing company that has been ensuring the global trustworthiness of digital communications since 2015. Valimail delivers the only complete, cloud-native platform for validating and authenticating sender identity to stop phishing, protect and amplify brands, and ensure compliance. Building trust in your email means cutting off phishing at its root. And you also get the benefits of brand protection, compliance, increased email deliverability, and the ability to leverage cutting-edge email standards like BIMI, AMP, and Schema.org. Automatic detection of outbound sending services. Access to the largest database of named sending services. Detailed views into the authentication status (SPF, DKIM, and DMARC) of all sending domains and services. Automated DKIM key detection and configuration. -
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Primeforge
Primeforge
Primeforge is a cold email infrastructure platform built to provision fully compliant Google Workspace and Microsoft 365 mailboxes, specifically optimized for high-deliverability outbound outreach. It automates the complex technical setup required for cold email, including SPF, DKIM, and DMARC configuration, domain authentication, and DNS management, allowing teams to deploy ready-to-send mailboxes in about 30 minutes without manual IT work. It uses trusted email service providers and US-based IP infrastructure to improve inbox placement and reduce the risk of messages landing in spam folders. Primeforge supports bulk domain and mailbox management, workspace organization, and compatibility with virtually any outreach software, enabling agencies and sales teams to scale multi-domain campaigns efficiently. It also includes automated account configuration, profile personalization, and best-practice implementation to maintain sender reputation and stable performance.Starting Price: $38 per month -
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Mailora
Mailora
Mailora is a modern email deliverability intelligence platform designed to help businesses ensure their emails reach the inbox instead of spam. Built for marketing teams, growth teams, and email operations professionals, Mailora provides deep insights into email performance across global ISPs, devices, and user environments. The platform offers advanced inbox placement testing, real-time deliverability monitoring, and actionable analytics that help teams identify why emails fail to reach the inbox and how to fix those issues quickly. With Mailora, organizations can track sender reputation, analyze spam filter behavior, and monitor authentication standards such as SPF, DKIM, and DMARC. Mailora simplifies complex deliverability challenges by turning technical data into clear, easy-to-understand insights. This allows teams to optimize their email campaigns, improve engagement rates, and protect their sender reputation.Starting Price: $40/month -
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DMARCLY
DMARCLY
Block phishing, business email compromise, ransomware, spam, and improve email deliverability. DMARC is more than just email security. It's also about email deliverability. Stopping email spoofing effectively increases user engagement, which in turn improves your domain sender score. A high domain sender score improves your email deliverability: your business emails are more likely to reach the inboxes. Email deliverability depends on successful email authentication. Ever wonder if your emails are properly authenticated and delivered? Stay confident about email deliverability with DMARCLY reporting. Knowing that your legitimate emails land in the inbox while others don't brings marketers ease of mind. No auth, no entry. Email service providers like Gmail and Office 365 are increasingly sending unauthenticated emails to spam or even rejecting them outright. DMARCLY is a comprehensive SPF, DKIM and DMARC monitoring solution.Starting Price: $14.99 per month -
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DMARCS
DMARCS
DMARCS is an enterprise email security platform designed to simplify DMARC implementation and protect organizations from email-based threats. It helps businesses automate email authentication protocols such as DMARC, SPF, and DKIM across all domains. The platform provides real-time threat intelligence, allowing security teams to identify phishing, spoofing, and impersonation attempts. It offers centralized visibility into email activity, giving organizations clear insights into domain usage and authentication performance. DMARCS also includes automation tools that reduce manual effort and minimize configuration errors. Its vendor risk management features help monitor third-party senders and ensure compliance with security standards. Overall, DMARCS enables organizations to strengthen email security, protect their brand, and maintain trusted communication channels. -
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WillItInbox
WillItInbox
WillItInbox is an email deliverability and validation platform for SaaS teams, developers, agencies, marketers, and newsletter operators that depend on outbound email. Teams can generate a unique test inbox, send a real message from their app or ESP, and receive a practical deliverability report across SPF, DKIM, DMARC, BIMI, DNS, reverse DNS, blocklists, TLS, headers, content, links, reputation, and sender infrastructure. WillItInbox also validates individual emails and bulk CSV lists using syntax, DNS/MX, disposable, role, typo, provider, catch-all, SMTP, suppression, and confidence signals. It includes domain monitoring, DMARC report analysis, sending source visibility, provider reputation checks, API keys, webhooks, scheduled checks, incident diagnostics, inbox placement checks, team workspaces, and exportable reports. Paid plans start at $39/month. PAYG credits are available for extra email validation and deliverability testing usage.Starting Price: $39/month -
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MailFlow.io
MailFlow.io
Not having SPF & DKIM properly setup is a one-way ticket to spam. We will verify it's properly configured and help you do so with confidence so you can send emails safely. A blacklisted domain drastically affects your email deliveries. We monitor close to 100 blacklists, so you'll be the first to know if one of them decides they don't like you so you can react fast. Keep track daily of your sender reputation with various providers helps you decide if you should continue or slow down some email activities. Make sure your cold outreach domains lead to a valid web page. Get notified immediately if the page is broken so you can fix it immediately. Make sure your email doesn't land in Spam, or don't stay there. Our advanced technology helps boost your deliverability drastically so your message can be received & read.Starting Price: $49 per month -
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SalaX Secure Mail is an easy-to-use and highly secure email encryption solution that can be embedded in your existing email services to protect confidential email communications. Verify all users (senders and recipients alike) with various authentication methods (including strong authentication bank ID, SMS OTP, mail OTP, and password). Ensure security with monitoring features, like audit trails and various reporting options. Protect your communications with end-to-end encryption, all the way from sender to recipient. Secure Mail supports various email security protocols (DMARC, DKIM, SPF) as well as S/MIME-based encryption. You are in control of your data, flexible deployment is possible in the cloud or on-premises. Secure Mail also offers multiple configuration options (APIs, web interfaces). Classify confidential data and adjust security levels according to your policies. Stay compliant with data privacy laws and regulations (e.g. GDPR) thanks to government-grade security.
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22
SendPost
SendWorks
SendPost replaces manual workarounds, messy hacks and daily frustrations that come along with your email API/SMTP provider. See if you are sending only a few thousand emails then most email API solutions work well. You will choose one of them based on price, features or support. The real problem comes if you are one of the big senders—sending millions of emails per month. That's when managing multiple sending domains, IP-Pools and IP/Domain reputation becomes a severe headache. At that scale, even a minor dip in your email open rate or deliverability impacts your revenue. You want a solution which helps you understand what broke with your email deliverability and how you can fix it quickly. You don't want to spend hours wading through logs and manually checking if your domain or IP is blacklisted or your sending reputation is low.Starting Price: $7 per month -
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Maileroo
Maileroo
At Maileroo, we provide a powerful platform for both SMTP relay and email marketing. We ensure fast, reliable email sending with real-time tracking of deliveries, clicks, opens, and bounce rates. With our free Email Verification API, dedicated IPs, and DNS Records for sender authentication, we help reduce bounced emails and improve deliverability. Our email marketing platform makes it easy to create and manage campaigns. You can personalize emails, use our drag-and-drop email templates, form builders, and flexible Contacts API. We provide real-time statistics and in-depth analytics to help you optimize your campaigns and boost engagement. We also offer seamless DNS setup, automation tools, multi-sender identities, and efficient contact management. Whether you're a small business or growing enterprise, Maileroo offers budget-friendly pricing and everything you need to scale your email marketing, making it a smart choice for businesses of all sizes.Starting Price: $10 per month (25,000 emails) -
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Symantec Email Security.cloud
Broadcom
Safeguard Microsoft Office 365, Google G Suite, and on-premises email with the industry’s most complete email security solution. Insulate users from spear phishing, credential theft and ransomware attacks by using Email Threat Isolation. Prevent insidious email threats such as spear phishing, ransomware, business email compromise and email spam. Stop spear phishing emails with multiple layers of protection, threat isolation, spam filtering, advanced security email analytics, built-in user awareness, education tools, and more. Block the latest ransomware with content defense, sandboxing, and link protection technologies that detect emerging, stealthy, and zero-day attacks. Defeat business email compromise with impersonation protection, sender authentication enforcement and brand protection controls. Protect your brand reputation by using automation to solve the practical issues of enforcing sender authentication (DMARC, DKIM and SPF) with Symantec Email Fraud Protection. -
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ZeptoMail
Zoho
Your transactional emails carry crucial information. ZeptoMail is a reliable and secure service that delivers these all-important emails instantly. With high-speed delivery and great inbox placement, ZeptoMail means you no longer keep your customers waiting. Transactional emails are unique emails that are usually triggered by some user action. More often than not, your customers are expecting these emails in their inbox within seconds of the trigger action. Pick the right delivery service and keep your customers happy. Your users will no longer be left refreshing their inbox for their email verification code or password reset emails. Email deliverability is a consequence of the reputation of the sender IP address. ZeptoMail is built exclusively to tackle the challenges of sending transactional emails. Delivery is good. Delivering to the right folder is crucial. ZeptoMail supports industry-standard authentication mechanisms such as SPF and DKIM.Starting Price: $2 per credit -
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SMTP2GO
SMTP2GO
Send and track all emails easily and securely with SMTP2GO, a reliable outgoing email service solution. SMTP2GO features a redundant, multi data center infrastructure that allows users to send emails even if there is a major internet outage. SMTP2GO has features like real-time analytics, bounce/spam tracking, weekly summaries, spamtrap detection, blacklist monitoring, DKIM/SPF, and more.Starting Price: $10 per month -
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Labnify
Labnify
Labnify provisions email API and SMTP-integrated mailer so you won't need any of those pesky SMTP credentials. A system that delivers and track mass emails reliably enriched with features like real-time analytics, open/click metrics, bounce/spam tracking, template builder, and more. No one likes being blacklisted. That's why our innovative blacklist monitoring feature keeps a watchful eye on your sending reputation, ensuring your emails always land in the recipient's inbox. Plus, Labnify takes email authentication seriously, utilizing DKIM/SPF authentication to enhance your deliverability and add that extra layer of security. Millions of emails have relayed via Labnify as it's easy to work with. Simply import your email list and hit SEND without the need for an SMTP credential, making it a 2-in-1 email marketing stack. Built on the most cost-effective Email API, deliverability and scalability matter. Easily connect and send your email using our automated system and scale.Starting Price: $99/month -
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PerfectMail Antispam
PerfectMail
PerfectMail delivers better than 99% filter accuracy with false positives (wanted e-mail blocked as spam) at less than 0.1%. PerfectMail automatically learns about your users and their regular e-mail peers and never blocks their e-mail. The only time PerfectMail might have an issue is with a questionable e-mail from new senders. This takes the risk out of antispam filtering. Most spam filters work like this: receive e-mail, queue, filter, deliver or send a non-delivery reply. The problem with this model is that mail is delayed and senders/recipients may never realize that wanted messages were blocked. PerfectMail works in real-time meaning that it filters messages as they are received - without queuing. This means that PerfectMail tells the sender if their message is being blocked. - PerfectMail's antispam engine is programmed C - the fastest programming language in the world.Starting Price: $499 one-time payment -
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WA Web Sender
WAPU Tech
See what's in WA Web Sender for you! ✅ Send Bulk Messages: Send multiple messages at once. ✅ Set Sending Interval: The time interval between each message is up to you. ✅ Send Multiple Attachments: Support adding images, video, documents, Excel, and other types of attachments. ✅ Send Personalized Messages: The messages sent to contacts show personalized content. ✅ Export Group Members: Export group member information in batches through WA Web Sender. ✅ Check Messages Status: Display the message-sending status in the WA Web Sender. And retry the failed sending message. Try The Smartest WhatsApp Sender!Starting Price: $0 -
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Maildoso
Maildoso
Maildoso provides outbound mailboxes built for cold email, combining SMTP and Google Workspace infrastructure, fast setup, strong deliverability, and automated technical configuration. It helps teams diversify their sending strategy with reputable mailboxes built specifically for cold outreach, so campaigns are not dependent on one sender type, domain, or provider. Users can register domains directly in the dashboard or connect their own, enter mailbox names, and have SPF, DKIM, and DMARC auto-configured so mailboxes are ready to export and use with outreach platforms in minutes. Maildoso supports SMTP mailboxes, Google Workspace mailboxes, and combined setups, giving teams flexibility based on their sending strategy and target audience. It connects with popular sequencers and outreach tools such as Instantly, Smartlead, Saleshandy, and others, making it easier to move newly created mailboxes into active campaigns.Starting Price: $90 per month -
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Migomail
Migomail
Using an SMTP relay service like Miogmail is the simplest way to get started sending marketing and transactional emails. Send emails as per specific action or send series based bulk email relentlessly. Design creative customize email templates using drag-drop editor or use readymade responsive template. Security is Security is first priority, secure email infrastructure integration with SSL, DKIM, DMARC, SPF, SSL, TLS. Increase your email delivery with advanced management tools and Dedicated IP address. Create professional-looking personalized transactional, promotional and newsletter email. Utilize transactional/promotional SMTP or SMTP API to send bulk email. -
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OpenText Core Email Message Privacy
OpenText
OpenText Core Email Message Privacy enables organizations to securely send emails and attachments, up to 100 GB per message, through a browser or Outlook without relying on insecure cloud-sharing tools. It uses AES-256 encryption at rest, and messages are uploaded to a secure portal; as the sender, you can set and manage permissions such as view, reply, and forward, even revoking rights after delivery. Recipients receive a secure link and can access messages via web or mobile without installing extra software. It includes built-in e-signature support, allowing recipients to add legally binding signatures directly within the secure message flow. Every interaction, delivery, opening, download, and signature is tracked in real time and logged for full auditability. It supports large file transfers while avoiding infrastructure complexity; it’s SaaS-based, requires no extra servers, and integrates with single sign-on (SSO). -
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SEPPmail
SEPPmail AG
Sending and receiving digitally signed and encrypted emails is easier and more convenient than ever before. Thanks to the Secure E-Mail Gateway from SEPPmail with integrated and patented GINA procedure for spontaneous encryption, SMEs and large companies secure their entire e-mail communication at the highest level, with the least effort and simplest handling for sender and recipient. With its comprehensive Secure Email solution, SEPPmail is setting new standards for secure, GDPR-compliant email communication. As one of the world’s leading email encryption and signature solutions, SEPPmail includes all the features to protect the sending of confidential data via email, guarantee the authenticity of the sender and ensure the confidentiality and integrity of the message. Thanks to its modularity, the secure e-mail gateway solution can be configured according to customer-specific requirements and expanded seamlessly.Starting Price: 4.5 € per user per month -
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EmailSuccess
DIENNEA SRL
EmailSuccess is an enterprise-level SMTP Server for high volume email sending. EmailSuccess is an MTA (Mail Transfer Agent) solution for senders of any size: ESPs and Marketing Automation Companies. High Performance EmailSuccess is an MTA designed to deliver high email volumes, giving the business full control over Speed, Latency, Reliability and Deliverability parameters. Deliverability Deliverability is key for the clients to reach their target easily. Ensure that the email has the best chance of avoiding spam filters and landing in the inbox. Advanced Sending Intelligence Optimized delivery by tuning email delivery parameters automatically and in real-time; making platform tuning ever so easy.Starting Price: $0 - $4000 -
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InboxGreen
InboxGreen
InboxGreen is a free email deliverability checker that tests SPF, DKIM and DMARC records for any domain instantly, no account required. It shows exactly which DNS records pass, fail, or are missing, and explains what each result means for inbox placement. The platform includes 28 free DNS tools: DMARC analyzer, DMARC policy tester, SPF generator, SPF tester, DKIM generator, DKIM checker, DKIM selector finder, blacklist checker, email header analyzer, MX lookup, TXT lookup, WHOIS lookup, reverse DNS, DNS propagation checker, SMTP port checker, IP address info, and more. For teams that need to fix issues, the FixKit provides step-by-step DNS fix instructions for every problem found. The Monitoring plan watches up to 5 domains and sends alerts the moment SPF, DKIM or DMARC breaks. The Agency plan covers up to 30 domains with white-label PDF reports. Built for developers, marketers, and anyone who sends email and needs it to actually reach the inbox.Starting Price: $19 -
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Gmailytics
The Chat Widget LLC
Gmailytics is a Gmail cleanup and inbox analytics tool that helps you take back control of an overflowing inbox. Connect your Gmail account in seconds and see exactly who is sending you the most email, which senders you actually open, and where storage space is being wasted. With one click, unsubscribe from newsletters in bulk, archive or delete thousands of old emails by sender, and free up Google account storage without digging through years of messages. Gmailytics surfaces the noisy senders, promotional clutter, and forgotten subscriptions that traditional Gmail search makes hard to find. Built with privacy as a priority, Gmailytics is CASA Tier 2 certified and Google OAuth verified, meeting Google's highest third-party app standards. A great alternative to Clean Email, Mailstrom, Unroll.me, and SaneBox for users who want a faster, simpler approach. Works in your browser with no install required.Starting Price: Free -
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PostageApp
PostageApp
PostageApp is an Email Service Provider (ESP) with a no-hassle approach. We aim to get you set up within minutes for our simple email service, while not compromising on the cutting edge of deliverability best practices, such as DKIM, SPF, rigid RFC compliance and full participation in ISP Feedback Loops. We offer startup-friendly shared plans for getting your MVP off the ground, with progressive increases through to our Dedicated IP plans allowing your app to grow and you to take ownership of your reputation ensuring maximum throughput. Our developer-focused support and tools get you started without a hitch, our in-house deliverability experts actively monitor and work with you to hit inboxes and our reporting, tracking and analytics provide insight into your campaign's success. -
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ExpertSender
ExpertSender
What is ExpertSender? ExpertSender is a stable, high deliverability platform that helps eCommerce stores to grow their revenue with marketing automation across email, SMS, mobile, web and chat channels. We provide advanced data-driven customer segmentation, dynamic message personalization and dedicated support for all our customers. We've been in the business for over 11 years and deliver over 20 billion messages a year for over 1,000 brands worldwide. Best For Medium-sized and big eCommerce stores, but we also bring value to other industries, including travel & hospitality, finance & banking, automotive and media & publishing. -
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Opt-Inbox
Sendio
Sendio’s Opt-Inbox is a proprietary sender management process, acting on messages having cleared email security, which would otherwise be released into a user’s inbox, ensuring that recipients only receive messages from desirable sources, whether from individuals or subscriptions, leaving the new yet undecided sources to the recipient’s discretion in a queue separate from the usually messy quarantine queue. Despite being protected by advanced email security systems, many inboxes continue to be inundated with countless security-cleared messages comprised of persistent sales pitches and marketing communications, distribution lists and bulk sources. Separating harmful messages in the quarantine queue from nuisance and potentially desired ones is increasingly difficult. This can become particularly troublesome for executives and professionals who can’t afford to overlook an important email and find out later they had a desirable message (false positive) in their cluttered quarantine queue.Starting Price: $795 per year -
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Postmastery
Postmastery
Postmastery provides a platform for professional email monitoring that goes far beyond the obvious ‘click & open’ statistics. Postmastery’s Delivery Analytics platform processes SMTP delivery data from both on-premises mail servers and SMTP providers. It reads data from Microsoft SNDS, Return Path Sender Score and relevant blacklists. Users have access to real time dashboards and receive automatic alerts. High bounce rates, increased delivery times, junk foldering or blacklisting are serious problems in email marketing and they impact your business. Since they affect your reputation , it's best to stay ahead of them. Postmastery offers a baseline for improvement and carries out an email delivery assessment. And, if needed, our specialists provide hands-on support at infrastructure level as well. Focus on your core business and outsource your delivery monitoring to Postmastery. Email delivery experience, expertise and tooling is at your disposal via our 'email delivery control centre'. -
41
Cllavio
Cllavio
Cllavio is a high-deliverability email marketing and transactional email platform designed for startups and growing businesses. It includes a fast campaign builder, a powerful SMTP and REST API, clear analytics, AI-powered spam detection, and domain warming tools to help your messages reach inboxes. With automated bounce monitoring, DKIM/SPF/DMARC validation, Shopify integrations, and predictable pricing, Cllavio makes it easy to send newsletters, cold emails, bulk campaigns, and transactional notifications from a single dashboard. It's designed for teams that want speed, reliability, and scalable email delivery without the enterprise complexity.Starting Price: $9.99 -
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Amazon SES
Amazon
Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.Starting Price: $0.10 per month -
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Email Shield
Fraud.net
Email Shield is a cloud-based email security add-in, which helps businesses across various industry verticals such as banking, fintech, eCommerce, government, mobile, travel, gaming, telecommunications and more, prevent email-based fraud attempts and receive fraud risk scores and alerts. It tracks and verifies trusted contacts, letting users expose risky emails and ensuring safety of financial transactions. Email Shield allows accounts payable (AP) agents to scan emails, AP senders, and attachments and approve, escalate, or reject payment and account change requests. The system accesses and modifies personal details in the active message including the subject, body, recipients, sender, and attachment information to ensure protection from invoice, vendor, and wire fraud. -
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Bulk SMS-Voice Call
Agranii
Agranii.com Bulk SMS Jaipur enables companies to communicate with their target audience for marketing their products or services. Agranii.com Jaipur offers Transactional Bulk SMS in Jaipur for Schools, colleges, Associations and Promotional Bulk SMS in Jaipur for promoting new products or services through a web-based application that allows to send SMS from the internet or send SMS from PC. Enterprises can use Agranii.com Jaipur bulk SMS service for Sending SMS to India, SMS marketing, SMS Advertising, customized Bulk SMS services. Agranii.com Bulk SMS Excel Plugin can be used for sending bulk SMS using Microsoft Excel. Our MS Excel Plugin facilitates a user to send customized bulk SMS to different users in one click. We get certain messages containing the Sender as some company name as the example. These are the messages which get delivered to the recipient with the sender's predefined company name or personal name, which is called Sender ID. -
45
Bulk Mailer
Bulk Mailer
Bulk Mailer is the best email marketing software created to design, send and monitor bulk messages. The utility has its own built-in SMTP server that enables it to deliver mass email messages directly to the recipients' mailbox. Bulk Mailer makes it possible to control the effectiveness of your email campaign, it enables you to monitor who, when and where (from what country) opens your email. With mass email software it becomes easy to manage your contacts lists and create personalized HTML messages. This program is indispensable for those who run bulk email campaigns. With its powerful features bulk email software yields spectacular results and beats your business rivals. Bulk Mailer accepts mailing lists generated in Access, Excel, DBF, Word, made in ASCII text files (.txt, .lst). It should be mentioned that it is possible to enter an unlimited number of email addresses. Bulk Mailer provides you with an extremely flexible sending engine. -
46
WASender AI
WASender AI
WA Sender is a free, AI-powered WhatsApp bulk messaging tool designed to streamline communication for businesses and marketers. It allows users to send personalized messages, including text, images, PDFs, and videos, to multiple contacts simultaneously without the need to save their numbers. Key features include Excel contact uploads, message personalization using recipient names, attachment support, and batching with time-gap controls to minimize the risk of account bans. It also offers AI-driven functionalities, such as automated responses and chatbot capabilities, enhancing customer engagement even when staff are unavailable. Users can track campaign performance through detailed analytics, monitoring metrics like messages sent, delivered, read, replied to, and unsubscribed. WA Sender integrates seamlessly with WhatsApp Business, requiring setup through a Meta Business Account and the WhatsApp Business API.Starting Price: Free -
47
Solarium
Solarium
Solarium is a fully decentralised, end-to-end encrypted, censorship-resistant instant messenger based on the Solana blockchain. Solarium is currently in alpha phase, running on the Solana devnet. All messages in Solarium are end-to-end encrypted using the XChaCha20-Poly1305 symmetric encryption algorithm, using a 256-bit content encryption key (CEK) that is shared for all messages in a given channel. The message content in Solarium is not directly signed, i.e. the data itself, once decrypted, does not contain details about the sender. Instead, the blockchain transaction that adds the message to the channel is signed by the sender. -
48
PowerMTA
Bird
PowerMTA is an enterprise-grade email message transfer agent (MTA) software for sending high-volume, business-critical emails. PowerMTA can be run on your own server or in any public cloud such as Amazon Web Services or Microsoft Azure. With unmatched reliability and powerful analytics, PowerMTA gives you total control of your email sending. Improve performance, deliverability, and team efficiency with a simple set up, a small hardware footprint, and robust analytics. Try PowerMTA with Signals today, with volume pricing starting at $8,000 per year. PowerMTA includes SparkPost Signals, offering a complete view of your email sending. Analyze per-domain, per-campaign, and even per-recipient performance, allowing you to optimize your sending and prevent problems before they occur. PowerMTA provides unsurpassed delivery and performance in a stable SMTP environment. High-speed sending with total control.Starting Price: $8000 per year -
49
DMARCwise
DMARCwise
DMARCwise is a DMARC monitoring and analysis product. It helps you protect your domain from email spoofing and safeguard your email reputation. With DMARCwise, you can stop scammers from impersonating your domain and ensure your emails avoid spam folders. Start by testing your email setup for free to verify if SPF and DKIM are correctly configured on your domain. Our step-by-step guidance helps you set up your DMARC record, detect and resolve authentication issues, and monitor all email activity from your domain through our reporting dashboard and weekly email summaries. Here are all the features: - Guidance to setup your DMARC record - Automatic aggregate DMARC reports (rua) parsing - A centralized dashboard to manage all your domains - Sources categorization (legitimate and malicious) - Long data retention - Weekly email digests - Run diagnoses to test if SPF and DKIM are properly configured - And more! Get started today for free!Starting Price: €15/month -
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SendFlock
SendFlock
SendFlock is an all-in-one cold email platform designed to streamline outreach efforts by integrating email warm-up, automated follow-ups, a unified inbox, and CRM functionalities. Users can connect multiple email accounts, regardless of the service provider, and manage them through a single interface. It offers automated email sequences, allowing users to focus on pitching new leads while the system handles follow-ups. Its email warm-up tool ensures maximum deliverability by gradually increasing sending volume and engaging with a warm-up network to build sender reputation. The unified inbox consolidates all email accounts, improving response times and efficiency. SendFlock's CRM provides an immediate overview of the sales pipeline, helping users prioritize valuable deals. Additional features include AB testing to optimize outreach messages, custom tracking domains to improve deliverability, a global block list to protect sender reputation, team member management, etc.Starting Price: $199 per month
