Alternatives to Sendmux
Compare Sendmux alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to Sendmux in 2026. Compare features, ratings, user reviews, pricing, and more from Sendmux competitors and alternatives in order to make an informed decision for your business.
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1
SendGrid
Twilio SendGrid
Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.Starting Price: $19.95 per month -
2
SMTP.com
Ziff Davis
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.Starting Price: $25 per month -
3
EmailLabs
Vercom
EmailLabs is part of the Vercom S.A Group, which implements technology solutions in the CPaaS model. We are a cloud SMTP server infrastructure: Cloud SMTP & Email API. With years of experience in sending to the most informed senders, we can make a measurable contribution to building email reputation and improving deliverability. We take care of standardization and security of both marketing, transactional and system messages of our customers. Thanks to the in-depth knowledge of our experts, we are able to prepare the infrastructure to ensure appropriate throughput and increase the sending speed for any market and any mailbox provider. Plug EmailLabs into your transactional sends - start sending in less than 5 minutes.Starting Price: Free -
4
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 -
5
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 -
6
Mail360
Zoho
Mail360 is an email API platform that gives your application full email capabilities without having to build it yourself. Whether you connect to a mailbox hosted with a different email provider or host your user's inbox with us, a single email API can power your application's email workflow. Experience secure and reliable two-way email sync with multiple email providers in real-time. Sync, send, and receive emails from anywhere with just a single email API set. Universal email API that lets you build email workflows for your application, however you see fit. Go beyond simply connecting your application to other email providers. Host your application's mailbox and integrate it with your workflow without depending on other email providers. -
7
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 -
8
Sweego
Mindbaz
Sweego is a multichannel (email & sms) notifications platform for developers. Sweego allows users to send transactional, engagement, and CRM messages through channels like email and SMS. The platform provides APIs and webhook system to integrate notifications and messaging capabilities into applications. (SAAS, Mobile, Desktop, whatever...) We offer SMTP Service or API to send emails or sms. We offer Inbound Email routing feature, we got email, parse it and deliver in JSON by webhook. With our email builder, you can create your template easily with drag and drop fonctionnality, HTML import, good email client compatibility, brand management, etc... Key features include message templates, email authentication, webhooks, sandbox testing for emails, statistics, logs and scalability.Starting Price: €10/month -
9
MailerLogic
MailerLogic
MailerLogic is an Enterprise Email Delivery Platform combining ESP-grade infrastructure with real-time deliverability intelligence. It bridges the gap between transactional APIs and bulk sending, ensuring emails land in the inbox, not spam. Key Functionality: 1. Smart Routing: Separates transactional and bulk streams automatically to keep priority mail fast and reputation high. 2. Email Validation: Real-time syntax, domain, and risk checks to reduce hard bounces before sending. 3. Deliverability Tools: Content scoring (spam-risk preview), abuse prevention, and a live 0–100 Health Score for reputation monitoring. 4. Developer-First API: Clean REST endpoints and SMTP relay with SDK examples for Node, Python, and cURL. 5. Webhooks & Analytics: Real-time event notifications (delivered, opened, bounced) and aggregated statistics APIs for external dashboards. 6. Automated Compliance: Built-in suppression list management for unsubscribes and bounces at the transmission layer.Starting Price: $9/month -
10
AgentMail
AgentMail
AgentMail is an API-first email platform designed to give artificial intelligence agents their own fully functional email inboxes, enabling them to communicate, send messages, and participate in email conversations autonomously. Instead of building on traditional email providers created for human users, it provides programmatic inboxes that can be created and managed directly through an API, allowing developers to assign email identities to AI agents in the same way a human would have a Gmail or Outlook account. Each agent receives its own inbox and email address, which can send, receive, and reply to messages while maintaining threaded conversations and persistent message history. It enables AI agents to read and interpret incoming emails, extract structured information from messages, and automatically generate responses or trigger workflows based on the content of the conversation.Starting Price: $20 per month -
11
OpenMail
OpenMail
OpenMail gives AI agents a dedicated email address. Provision an inbox with one CLI command or API call, each agent gets its own address, not a shared inbox or forwarding alias. Inbound email arrives instantly via webhook or WebSocket, parsed and threaded, with no polling required. Replies land in context so agents can respond without any new interface on the human side. Attachments: PDFs, CSVs, images, spreadsheets, Word documents are automatically converted to LLM-ready text; the agent never touches raw MIME. The API is small by design: one call to provision, standard calls to send, webhooks or WebSocket to receive. Integrates with LangChain, n8n, Make, Vercel AI SDK, and OpenClaw. Custom domains supported. Runs in the EU, GDPR-covered, 99.9% uptime SLA, SOC 2 in progress.Starting Price: 9 EUR -
12
Unipile
Unipile
Unipile is a unified API designed to integrate multiple communication channels, messaging, email, calendar, and more, into your software application. It provides over 500 endpoints that enable developers to connect platforms such as LinkedIn, WhatsApp, Instagram, Gmail, Outlook, and IMAP into a single unified inbox. With Unipile, you can send and retrieve messages across channels, manage calendars (Google/Outlook), sync conversations in real time, and maintain full historical context across channels. The API supports functions such as starting chats, retrieving message threads, scheduling events, and connecting profile data, all through the same interface. Use-cases include ATS/CRM software publishers, outreach tools, no-code builders, and AI agent platforms, anywhere multi-channel communication needs to be embedded into an application. Unipile also emphasizes rapid integration, developer-friendly documentation, and live support.Starting Price: €49 per month -
13
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 -
14
WarmInbox
Offpista LTD
WarmInbox helps individuals and teams improve email deliverability by simulating real, human-like interactions—sending, opening, replying, clicking, and threading—to gradually build sender reputation and avoid spam folders. Designed for marketers, founders, sales teams, and agencies, WarmInbox runs automatically in the background, warming up each email account with trusted, natural-looking activity. Key Features: - Automated email warm-up, Monday through Friday - Realistic activity: opens, clicks, replies, and threads - Live dashboard to monitor deliverability health and inbox placement - Support for multiple inboxes and team members - Invite teammates and manage everything from one central dashboard - Secure setup using app passwords or OAuth - Pause or remove campaigns anytime - Transparent pricing with per-seat billing Whether you're warming a new domain or trying to fix poor deliverability, WarmInbox ensures your emails land where they should—the inbox.Starting Price: $15/month -
15
EmailIt
FunFirst s.r.o.
EmailIt is a versatile email sending platform catering to both marketers and developers. It offers flexible sending options through SMTP integration and a REST API, ensuring seamless integration with existing applications and software. The platform prioritizes email deliverability with comprehensive sending domain setup, including DKIM, SPF, and DMARC implementation. Users can efficiently manage audiences, create segments, and run targeted campaigns. emailit.com provides a user-friendly campaign builder, template library. With real-time analytics drip campaigns, and built-in compliance tools, emailit.com equips users with everything needed for successful email marketing initiatives. Whether you're looking to engage your audience effectively or integrate robust email functionality into your software, EmailIt offers a powerful solution for your email sending needs.Starting Price: $2 per 10k emails -
16
Mutant Mail
Fresent
Never miss an important email again! Manage all your email IDs in one inbox with our Email Router. Struggling with multiple Emails? Overcome the headache of managing multiple Email ids with our privacy-focused, server-side solution Mutant Mail. Problem: Imagine having 5 domains, with 5 Email IDs each (admin, support, help, legal, contact). That's 25 Email IDs. Do we want to log in to every mailbox to keep the domain persona? Answer: Receive, Reply & Send all Emails for your Domains from your free Gmail account(or any Email account) and save on Email Hosting. Skip the Email client setup headache! Forget about Credentials, SMTP, IMAP/POP for every Email id with Mutant Mail. With Mutant Mail service you can receive, send and reply all using one mailbox. Spoof-proof your Emails with complimentary DMARC Report. PGP/GPG encryption. Buffer / Batch your emails.Starting Price: $2.99 per month -
17
Mailtrap
Railsware
Mailtrap is an email delivery platform for developers and product teams, providing a flexible RESTful API and SMTP service to send emails at scale. The platform is built with a focus on high inboxing rates, fast delivery, and 24/7 technical support from deliverability experts. Mailtrap ensures 99.99% uptime with dedicated IPs, auto warm-up, and sender reputation protection. Developers can integrate quickly using SDKs for major languages (Python, Ruby, PHP, etc.) and manage high-volume sending with a customizable API. The platform provides industry-best analytics with helicopter-view dashboards to monitor key metrics and 30-day logs for easy debugging. Trusted by over 150,000 monthly active users including Yelp, PayPal, Atlassian, and Adobe.Starting Price: $15/month -
18
AutoSend
AutoSend
AutoSend is a lightweight, cloud-based email delivery platform built to send and track transactional messages (like magic links, verification codes, and confirmations) and marketing campaigns with reliable deliverability and strong inbox placement; it provides a simple RESTful Email API with SDKs for multiple languages, SMTP relay support, and webhooks for event-driven workflows that let developers integrate email into apps quickly and reliably. It also offers tools for reusable templates, contact lists, and segmentation, campaign creation, email automations, real-time logs, deliverability analytics, and engagement tracking so teams can monitor delivery status, opens, clicks, bounces, and suppressions. AutoSend integrates intuitive dashboards that modernize both developer and marketer workflows with features such as migration support from other providers, dynamic suppression lists, personalization, and automation builders, helping organizations streamline email communication.Starting Price: $1 per month -
19
MailInput
Devro LABS
This email verification tool actually connects to the mail server and checks whether the mailbox exists or not, wiping out disposable email addresses from your email list. This email verification tool actually connects to the mail server and checks whether the mailbox exists or not. Email Checker is a simple tool for verifying an email address. It's free and quite easy to use. Just enter the email address and hit the verify button. Then it tells you whether the email address is real or not. It extracts the MX records from the email address and connects to the mail server (over SMTP and also simulates sending a message) to make sure the mailbox really exists for that user/address. As it uses our unique set of data, the Email Verifier can return a result even where other standard verification tools fail. Our validation process has multiple threads, email format, domain information, server status, and email type.Starting Price: Free -
20
Mailforge
Mailforge
Create hundreds of domains and mailboxes in minutes with premium deliverability and free automated setup. Forget about email templates and programmatically send unique emails at scale in any language. Mailforge provides a necessary infrastructure with easy domain and mailbox management options. -
21
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 -
22
Elastic Email
Elastic Email
Tens of thousands of companies already send their emails with Elastic Email. An amazing Email Marketing platform, built on the most cost-effective Email API. Deliverability, reliability and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Build better relationships with your recipients with every campaign you send. Elastic Email provides all the marketing tools you need to help your contacts feel connected. Deliverability, reliability, and scalability matter. Easily connect and send your email via our HTTP API or SMTP relay and scale to 100+ million emails per month on our ultra-fast global infrastructure. Get the most out of your email marketing. Create beautiful emails, send newsletters, and automate your campaigns in a flash.Starting Price: $5 one-time payment -
23
Mailwarm
Mailwarm
Mailwarm : Automated Email Warmup & Deliverability Software Mailwarm is a cloud-based email warmup and deliverability platform designed to help businesses improve inbox placement and reduce spam filtering risks. Since 2020, Mailwarm has supported startups, sales teams, recruiters, agencies, and outbound marketers that rely on cold email and domain reputation management for growth. The platform strengthens sender reputation by generating consistent, natural engagement signals across multiple mailbox providers. Instead of relying on shortcuts, Mailwarm builds long-term trust with email providers through structured warmup automation. Mailwarm supports Gmail, Outlook, Microsoft 365, Yahoo, and custom SMTP configurations, making it suitable for teams launching new domains, onboarding new sales representatives, or managing multiple client inboxes.Starting Price: $69 per month -
24
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 -
25
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) -
26
Warmforge
Warmforge
Warmforge is a premium email warm-up tool designed to enhance email deliverability by mimicking human-like interactions within your mailbox. By gradually increasing email sending volume and engaging in AI-generated exchanges, it signals to email service providers that your inbox is active and trustworthy, thereby improving the likelihood of landing in recipients' primary inboxes rather than spam folders. Warmforge offers features such as heat score monitoring, multi-mailbox support, and a deliverability dashboard providing real-time insights into email performance. The platform supports both Gmail and Outlook, ensuring broad compatibility. Pricing starts at $12 per mailbox per month, with discounts available for bulk users, going as low as $3 per mailbox per month. Additionally, Warmforge offers an ambassador program, allowing users to earn recurring commissions by referring new customers.Starting Price: $3 per mailbox per month -
27
Spam Arrest
Spam Arrest
Before using Spam Arrest, over 90% of our customers tried a spam filter on their inbox, yet spam still got through. Spam Arrest protects your mailbox from 100% of spam with a patented method for verifying relationships between you and your valued contacts, making email safe for everyone. Access your email using your favorite POP3/IMAP-compatible program (such as Outlook or Eudora), or from anywhere using our powerful webmail system. Get a new email address, as well as protect your existing mailboxes. Patented challenge, response technology blocks 100% of automated spam. Webmail allows you to access your email from any web browser, without having to install any additional software. SMTP is a standard protocol used for sending email. When you send email through the Spam Arrest SMTP server or webmail, the person you are sending email to is automatically added to your whitelist, so that they can reply to you without having to complete the verification process. -
28
Kickbox
Kickbox
Test, monitor and optimize your email programs to reach more subscribers and increase your ROI with the #1 trusted email verification and all-in-one deliverability solution. Gain actionable insights by uncovering the health of your opt-in email lists to reduce bounces, protect your sender's reputation, and reach more high-quality subscribers. Prevent missed opportunities and increase your email ROI by connecting our real-time API wherever you collect email addresses online. Virtually eliminate hard bounces from fake, mistyped, or invalid email addresses. Monitor your sending domains and IP addresses for blocklistings. Real-time alerts allow you to quickly respond to resolve potential issues. Helps you determine whether your message is landing in the inbox or in spam by mailbox providers, like Gmail, Outlook and iCloud. Precheck email messages for content and design errors and spam filtering issues before sending. -
29
Postmark
ActiveCampaign
ActiveCampaign Postmark is the email delivery service that developers and product teams actually like. Send transactional and marketing emails and get them to the inbox, every time. Postmark maintains one of the best delivery reputations in the industry by routing transactional and promotional messages through parallel but separate sending infrastructure.Starting Price: $10/month for 10,000 emails -
30
turboSMTP
turboSMTP
TurboSMTP understands that email is not just a means of communication but the backbone of your customer engagement strategy. TurboSMTP Email API is trusted by developers and marketers alike for its time-saving features, scalability, and delivery expertise. Our service offers a flexible SMTP relay solution along with advanced features tailored to meet the needs of businesses of all sizes. With our intuitive dashboard, powerful features, and dedicated support, ensuring the delivery of your emails is seamless and uninterrupted. TurboSMTP's infrastructure is built to scale, whether you're sending a few hundred emails or millions. Integration with our service is effortless, with sample code libraries available in multiple languages, interactive documentation, and customizable templates. Monitor engagement data and optimize deliverability with our comprehensive reporting tools. Trust TurboSMTP to deliver your emails reliably and efficiently, empowering you to engage with your audience.Starting Price: $14.95 per month -
31
SendFleet
SendFleet
SendFleet is a secure, high-performance transactional email API designed specifically for developers and product teams. It provides a simple, reliable REST interface to send critical application notifications, password resets, and order confirmations without the complexity of traditional email delivery platforms. The service uniquely caters to data-conscious developers through its Bring Your Own Cloud (BYOC) model. This allows users to route transactional emails directly through their own Amazon SES account, ensuring complete data privacy as SendFleet never stores message content or recipient details.Starting Price: $9/month -
32
LiteMail
LiteMail
LiteMail is a cold email infrastructure platform built to help teams create, configure, and manage fresh or pre-warmed Google Workspace and Microsoft 365 inboxes for outbound campaigns. It is designed for cold email that converts, giving agencies, SaaS teams, recruiters, and outbound operators a faster way to build deliverability-ready mailbox systems without manually handling complex setup. It supports fresh inboxes, pre-warmed inboxes, pre-warmed domains, bulk email inboxes, cold email infrastructure, and automated mailbox provisioning with US and EU IP options. LiteMail automates essential technical configuration, including DKIM, SPF, and DMARC, helping teams reduce setup errors and prepare domains and inboxes for more reliable sending. Users can quickly purchase and configure mailboxes, manage or transfer domains, export mailboxes to outreach tools, and organize infrastructure from one workflow.Starting Price: $37 per month -
33
Email Checker AI
Evotik
EmailCheckerAI offers a bulk list email validation and API service designed to improve email quality by checking the deliverability and status of addresses before sending campaigns. It provides fast and accurate multi-layered validation that examines syntax, domain existence, DNS and MX records, SMTP mailbox status, disposable and throwaway emails, and catch-all or role-based addresses, categorizing emails as deliverable, risky, or invalid to boost send success and protect sender reputation. It supports CSV, TXT, XLSX, and XLS bulk uploads with real-time progress and comprehensive reporting, plus drag-and-drop list uploads and detailed results with validation status and recommendations. A developer-friendly REST API enables real-time integration into apps with sub-second response times and consistent JSON responses for programmatic email checks. It guarantees high uptime, secure SSL encryption, compliance with data standards, and optional support.Starting Price: $8.49 per month -
34
Resend
Resend
We are a team of engineers who love building tools for other engineers. Our goal is to create the email platform we've always wished we had — one that just works. Receive real-time notifications directly to your server. Every time an email is delivered, opened, bounces or a link is clicked. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Simulate events and experiment with our API without the risk of accidentally sending real emails to real people. Rely on a platform of reputable IPs used by trustworthy senders with distributed workloads across different IP pools. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period. Get a fully managed dedicated IP that automatically warms up and autoscales based on your sending volume, with no waiting period.Starting Price: $20 per month -
35
SendPulse
SendPulse
A multi-channel marketing automation platform designed to help marketers create personalized promotional campaigns. Users can choose between email, SMS, and web push notification or build an elaborate message sequence by combining several channels in a single campaign. When it comes to email marketing, the platform packs all the necessary tools to automate lead nurturing and lead generation. Users can create custom subscription forms and grow their mailing list. Intuitive drag and drop allows users to design mobile-friendly email templates or choose a predesigned one from a massive gallery. The company, also, offers a transactional email service that users can use to send up to 12000 free emails via SMTP or API. SendPulse has its own chatbot builder. Users can create a Facebook Messenger chatbot or a Telegram chatbot and use it to send personalized campaigns or as an autoresponder.Starting Price: $9 per month -
36
Zapmail
Zapmail
Zapmail is a cold email infrastructure tool that simplifies the setup and management of Google Workspace mailboxes for high-volume outreach. It automates domain and mailbox creation, manages SPF, DKIM, and DMARC configurations, and ensures high deliverability, making it an ideal solution for agencies and freelancers running cold email campaigns. Zapmail offers features such as automated mailbox and domain setup, Google Workspace integration at discounted rates, bulk exports to cold email tools like Instantly and ReachInbox, AI-powered deliverability optimization, and API access with DNS management. With Zapmail, users can easily purchase Google Workspace email accounts at reasonable prices, schedule and send campaigns from unlimited accounts while keeping their domain reputation safe, and manage everything in one place to boost outreach performance.Starting Price: $2.50 per month -
37
ITmanager.net
ITmanager.net
ITmanager.net is the best all-in-one enterprise server and network administration service. Monitor and manage all your critical IT servers from anywhere. Supported on all desktops, devices and Apple Watch. The ITmanager.net service allows you to manage your Windows Exchange servers from any mobile or desktop device. Among many other features, you can create, disable and remove mailboxes and distribution groups, and add or remove email addresses from mailboxes and distribution groups. You can also view mailbox sizes and change user mailbox, as well as send, receive and warning quotas. You are also able to enable or disable both out-of-office auto-reply and message forwarding and you can view message queues, and remove messages with NDR’s.Starting Price: $5 per month -
38
Mailreef
Mailreef
Mailreef is a cold email mailbox infrastructure platform built by cold emailers to make delivery and scaling easy. Its mailboxes are designed to rival Google, Zoho, and Outlook while giving outreach teams a cold-email-friendly environment with dedicated mail servers, dedicated IP addresses, bring-your-own-domain support, and unlimited inboxes. It lets users create domains and mailboxes in one click, with SPF, DKIM, and DMARC automatically configured so teams do not have to manage DNS records manually. Mailreef is built for teams that need to scale cold email campaigns without wasting time creating accounts, setting up fake profiles, or dealing with mailbox blocks from traditional providers. Its infrastructure supports day-one campaign readiness through pre-warmed servers, pre-warmed domains, and pre-warmed mailboxes, helping teams start outreach faster while maintaining stronger deliverability foundations.Starting Price: $240 per month -
39
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. -
40
Mailchimp Transactional Email (Mandrill)
Mailchimp
Transactional emails: Reach inboxes when it matters most. Deliver fast, personalized transactional emails using API or SMTP. Get the benefits of our experience sending billions of emails globally. Send personalized transactional emails that reach inboxes, not spam folders. Customize your analytics with pre-built dashboards, export API, and more. Read documentation guides, or contact our award-winning Support team for help. Use custom tagging, whitelabeling, conditional content, and more. Globally distributed infrastructure: Featuring automatic SPAM loop registration and pre-warmed dedicated IPs. Get analytics in multiple ways, plus custom tags, A/B test capabilities, and comparative reports. Utilize white-labelled click tracking, custom reverse DNS, rules engine, custom return path, and sub-accounts. That’s the average time to delivery for top 3 ISPs, sent from our MTAs to the recipient’s email server. -
41
Kernel G Suite Backup Tool
KernelApps
The G Suite Backup tool backs up G Suite mailboxes, appointments, & Google Hangouts/Chats to local systems safely. It backs up multiple mailboxes using a CSV file or Super Admin Account. Also, it provides filters and reports. A complete solution to keep a backup of Exchange, Lotus Notes, Outlook, Office 365, Amazon Workmail and SharePoint database. This tool offers easy brick-level backup for Exchange administrators to save Exchange data to Outlook PST format. The friendly interface helps in backing up Exchange data quite smoothly at the desired location. This advanced tool allows users with administrative rights to backup all Exchange mailboxes like shared mailboxes, public folders, and archive mailboxes. It backs up even Office 365 shared mailboxes and public folders to PST files. The emails in the Gmail app will be available for backup by our tool. The backup file will consist of all the folders of your mailbox, including inbox, sent, trash, and more.Starting Price: $49 one-time payment -
42
BlueFox Email
Innovaris Group
BlueFox Email handles all your email in one place, from transactional emails to full marketing campaigns. Our visual editor produces pixel-perfect emails that render flawlessly across every major client, including the usual headaches like Outlook. Build workflows like welcome sequences and cart-abandonment flows with our no-code automation builder, and reach the right people with dynamic segments that filter contacts by properties, behavior, or engagement. What sets us apart is pricing. We don't charge for the number of contacts you store, the way most platforms inflate your bill as your list grows. You pay only for how much you send, through simple sending packages starting at $50 for 50,000 sends, doubling to 100,000 if you bring your own Amazon SES. We also don't feature-gate, so every customer gets the full toolset on any package even while using free tier! Grow your list as large as you want. The only thing that scales is your sending volume.Starting Price: $50 -
43
Infraforge
Infraforge
Infraforge offers private cold email infrastructure with dedicated IPs, enabling users to set up domains and mailboxes in minutes. Features include proxies, SSL, domain masking, prewarmed domains, and mailboxes, all with free DNS setup. The platform supports multi-IP provisioning and provides an API for seamless integration. Infraforge is designed to help users take control of their email deliverability and scale their outreach efficiently. Create hundreds of domains and mailboxes using distributed email infrastructure with premium deliverability and free automated setup. Private email infrastructure with the ability to set private IPs, API, domain masking proxies, and more. Mailbox slots allow you to delete and create new mailboxes without any additional cost, as you are charged based on the number of slots, not the number of active mailboxes.Starting Price: $2.5 per mailbox per month -
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SharedConX
peefect.systems AG
SharedConX (sharedconx.com) by peerfect.systems AG automates the complete permission management for shared mailboxes in Microsoft Exchange and Outlook. Instead of manually assigning access rights per user, SharedConX controls everything via security groups — Full Access, Read Permission, Send on Behalf and Send As — automatically and in real time. When team structures change through onboarding, offboarding or role changes, permissions are updated instantly with zero manual intervention. Every change is automatically logged and audit-ready, making compliance with ISO certifications and data protection requirements straightforward. Built on 26 years of hands-on experience, SharedConX integrates directly into existing Exchange environments — On Premises, Hybrid and Exchange Online — with no downtime during rollout. Designed for IT teams in companies with 50+ employees. Scales to 10,000+ mailboxes. From CHF 2 per shared mailbox per month.Starting Price: CHF2/Shared Mailbox/Month -
45
Synology MailPlus
Synology
Improve team efficiency with an on-premises email solution that ensures data ownership, security, and reliability. Set up mailboxes based on advanced filters and custom labels to keep abreast of what matters to you. Turn off conversation mode and split email threads into separate messages to work the way you are used to. Invite work partners to share the same mailbox and make progress on projects together. Host multiple email domains on a single server and configure each independently. Configure different login methods, daily email traffic quotas, email delivery, and other policies for users and groups. Assign administrative rights by function to distribute the administrative workload. Visualize the threats against your team's inbound and outbound emails in simple and clear charts. Detect spam and learn more about email threats with the high-performance Rspamd engine. -
46
MailsSoftware OST to PST Converter
MailsSoftware
MailsSoftware OST to PST converter is a trustworthy solution to repair corrupted OST file data and export Outlook OST to PST, EML, MSG, and MBOX file format. An Outlook is world’s best email desktop client to send and receive the emails, calendars, task, contacts in OST and PST file format. An OST file creates when the email account is configured with MS Exchange server and cache exchange mode is checked. The OST file stores complete mailbox data in structured format. Sometime the OST file becomes unreachable or unable to open due to any reason like Virus Attack, Hardware problems, Modification in MAPI address or Exchange server crashed down etc. Then there is not any method to open and view OST file mailbox data. You have to get third-party software to make OST file readable. Download MailsSoftware OST to PST tool to recover highly corrupted Outlook OST file data along with complete mailbox data.Starting Price: $49 -
47
Fasoo Secure Email
Fasoo
Allow users to send decrypted documents through email without having to remove the encryption before sending. This email-based DLP tool provides an exception for encrypted documents through an approval process so internal documents always remain encrypted. Once approved, documents are decrypted by the server prior to sending them. Decrypt documents automatically as users email them without requiring the sender to request approval to decrypt the document before sending it to a recipient. Maintain document security throughout your environment, since unprotected documents are not stored on the user’s PC or mailbox. -
48
Shoviv Exchange Migration Tool
Shoviv Software
Exchange Migration is a picture-perfect solution that allows the instant migration of source mailboxes. Like EDB files, Outlook Stores, Offices 365 mailboxes, Live Exchange mailboxes, etcetera into Live Exchange, Office 365, and Outlook PST. It can migrate Live Exchange/Office 365 Public folders and Archive mailboxes into another Live Exchange/ Office 365 Public folders and Archive mailboxes. Shoviv Exchange Migration Tool offers a simple and straight processing; user-friendly GUI. Explore its working by downloading the free demo version of the tool. Users can also migrate source mailboxes to Live Exchange (On-premises) or Exchange mailboxes to Live Exchange Server. Migrate Office 365/ Live Exchange Public folder and Archive mailbox to another Office 365/Live Exchange Public folder and Archive mailbox.Starting Price: $499 one-time payment -
49
SendX
SendWorks
SendX is an Intuitive, Affordable & Feature-rich Email Marketing Software for marketers & business owners. SendX prides itself on enabling marketers with one of the simplest UIs in the industry. SendX provides unlimited email sends with every plan, powerful automation capabilities, 24x7 live support, best of breed email deliverability. 3000+ companies worldwide trust SendX for their Email Marketing. Pricing: - Start with 14 days free trial (no credit card required). - Pricing starts at $9.99/month Key Features & Benefits: - Send Unlimited Email Campaigns - Build Your Email List with forms and pop-ups - Powerful Automation Tools - Design with Drag & Drop Email Editor (no coding required) - Best Of Breed Email Deliverability (get emails delivered in the primary inbox) - Free Migration Service (we will migrate your email marketing account from any ESP for free) - 14 days Free Trial (no credit card required, instant setup)Starting Price: $9.99/month -
50
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
