Alternatives to SuperMailOS
Compare SuperMailOS alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to SuperMailOS in 2026. Compare features, ratings, user reviews, pricing, and more from SuperMailOS competitors and alternatives in order to make an informed decision for your business.
-
1
MailTova
MailTova
MailTova is a hosted business email service for organizations that want branded mailboxes on their own domains. Administrators can connect domains, create and manage mailboxes, and manage mailbox storage from a web dashboard. Users can read and send messages through browser-based webmail or configure compatible third-party clients using IMAP, SMTP, and POP3. The service includes domain verification and setup guidance for email-authentication records such as SPF, DKIM, DMARC, and MTA-STS. MailTova also documents an API and an MCP server for supported client workflows. It is intended for startups, freelancers, small businesses, agencies, and teams seeking hosted domain email without operating their own mail server.Starting Price: $5/month -
2
Deepbluework
DeepBlueWork
Deepbluework is a hosted business email and collaboration service for teams using a domain they already own. It provides custom-domain mailboxes with IMAP/SMTP access and 10 GB of storage per mailbox. Users can manage calendars, invitations, reminders, and browser-based video meetings, and create encrypted notes that can be shared through password-protected links. Administrators can add, suspend, and organize users, create distribution groups, view an organization chart, and manage domain settings and billing in a web dashboard. DomainConnect can automate DNS setup at compatible registrars; other domains can be configured with provided records. The service also supports forwarding selected mail to Chato.pro and access through standard IMAP/SMTP email clients. Deepbluework offers web, iOS, and Android access for businesses and small teams seeking email and related communication tools on a custom domain.Starting Price: $0 -
3
500Mail by 500apps
500apps
500Mail is an email client software by 500apps that provides secure, encrypted, and ad-free emails service used by small enterprises for accessing emails reliably and world-class data security. The main USP's of 500Mail include providing world-class data security, accessing any device, and providing unlimited mailboxes. 500Mail has an added feature to add multiple domains in a single interface and facilitate access to unlimited mailboxes for particular domains. With 500Mail filters, users can organize their inbox by applying conditions and actions for the incoming and outgoing emails. Signatures at the end of the emails are added to promote your business.Starting Price: $14.99 per month -
4
MailPilot
MailPilot
MailPilot is a web-based email warmup and deliverability platform for B2B sales teams, SDRs, founders, and cold-email agencies. It automates mailbox warmup and provides inbox-placement checks across major email providers, along with sender-reputation reporting and diagnostics for SPF, DKIM, DMARC, DNS, and blocklists. MailPilot also offers pre-send checks for spam signals and links, and can send alerts through connected communication channels. Users connect email accounts from supported providers or custom SMTP services to monitor mailbox health and prepare outreach campaigns. The service is intended to help teams identify deliverability problems and assess whether messages are reaching inboxes or spam folders; outcomes depend on mailbox configuration, provider policies, and sending practices.Starting Price: $9/month -
5
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 -
6
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 -
7
Mailu
Mailu
Mailu is a simple yet full-featured mail server as a set of Docker images. It is free software (both as in free beer & as in free speech), open to suggestions and external contributions. The project aims at providing people with an easily setup, easily maintained and full-featured mail server while not shipping proprietary software nor unrelated features often found in popular groupware. Main features include: Standard email server, IMAP and IMAP+, SMTP and Submission with autoconfiguration profiles for clients Advanced email features, aliases, domain aliases, custom routing Web access, multiple Webmails and administration interface User features, aliases, auto-reply, auto-forward, fetched accounts Admin features, global admins, announcements, per-domain delegation, quotas Security, enforced TLS, DANE, MTA-STS, Letsencrypt!, outgoing DKIM, anti-virus scanner, Snuffleupagus, block malicious attachments Antispam, auto-learn, greylisting, DMARC& SPF, anti-spoofingStarting Price: Free -
8
EmailPal
EmailPal
EmailPal is cold email infrastructure built for outbound teams and agencies. It handles everything between buying a domain and delivering an email. You can register domains or bring your own, and EmailPal sets up SPF, dual-key DKIM, DMARC and MX records automatically. Mailboxes are provisioned in bulk with SMTP and IMAP credentials ready to use. Built-in warming sends to real Gmail, Yahoo and AOL accounts, and a mailbox is only marked campaign-ready once measured inbox placement proves it. You can also lease pre-warmed inboxes on aged domains and start sending the same day. Deliverability is managed automatically, with hourly reputation scoring per provider and automatic quarantine and recovery of problem addresses.Starting Price: $69/month -
9
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 -
10
emailcampaign.ai
Email Campaign LLC
Most cold email tools assume the mailboxes, domains and DNS records already exist and already authenticate. emailcampaign.ai starts one step earlier. A daily sending target becomes a priced build, and one approval registers the sending domains, creates the mailboxes on Google Workspace, Microsoft 365 or dedicated servers, writes SPF, DKIM and DMARC and verifies every record against public resolvers, and warms each mailbox for two to three weeks before the first campaign. The same platform then runs the outreach: sequences within per-mailbox daily caps, a unified inbox that attributes each reply to the send it answers, reply classification, and inbox placement tests at Gmail and Outlook. For agencies a second product sits inside the first: a webmail on each client's own hostname, where the client's administrator connects a Google or Microsoft mailbox without sharing a password, masks addresses by policy, approves outbound forwarding rules and reviews deleted mail.Starting Price: $39/month -
11
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 -
12
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 -
13
Hermes SEG
Black Fish Networks LLC
Hermes SEG is a free, open-source secure email gateway and server. It delivers spam, virus, and malware protection using SpamAssassin, ClamAV, and Amavisd-new, along with full encryption in transit and at rest via SMTP TLS, S/MIME, PGP, encrypted PDF (CipherMail), and Dovecot mail-crypt. It includes email archiving and integrated mailbox hosting with quotas, aliases, shared folders, Sieve rules, vacation replies, and mobile auto-configuration. Collaboration features come through Nextcloud (webmail, file sync, calendars, contacts). Identity and access are managed with OpenLDAP and Authelia, supporting SSO and MFA (TOTP, WebAuthn, Duo). It also enforces modern authentication standards: SPF, DKIM, DMARC, and ARC.Starting Price: $0/month/user -
14
Winnr
Winnr
Winnr is a cold email infrastructure platform that runs the full sending stack in one place. Teams register outreach domains inside the dashboard, generate SMTP mailboxes that come with DKIM, SPF, and DMARC records already published, and enroll them in automated warmup. A shared inbox aggregates replies across every mailbox, and credentials export in one click to sequencers such as Smartlead or Instantly. Agencies and resellers can provision infrastructure programmatically through the REST API and webhooks. Continuous deliverability monitoring surfaces DNS drift and blacklist issues before they affect campaigns. Compared with running dozens of Google Workspace inboxes, Winnr cuts cost dramatically and reduces setup from days to minutes.Starting Price: $69/month -
15
BobWork Email Warm-up
BobWork
BobWork Email Warm-up prepares email mailboxes for outbound sending by gradually exchanging warm-up messages across a shared network or a private pool of a customer's own mailboxes. It automates sending and replies, monitors messages reported as spam, and provides mailbox health and deliverability indicators, including checks for SPF, DKIM, and DMARC. The service is designed for founders, sales and marketing teams, agencies, and small businesses that use new or inactive mailboxes for outreach. It supports connection to common providers and IMAP-compatible accounts, with availability depending on the provider and connection method. Users can review warm-up activity and mailbox status in a web dashboard. The service focuses on mailbox preparation, while its API and Model Context Protocol server also support optional outbound campaign workflows.Starting Price: $0 -
16
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. -
17
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 -
18
MXroute
MXroute
MXroute has an excessively powerful system to ensure that your non-spam, non-marketing emails get to their destination without worrying about IP reputation. We are, quite simply, obsessed with consistent email delivery and maintaining the highest reputation among mail providers. We support the basic e-mail protocols that you expect. SMTP, IMAP, POP3. We support mail forwarding (aka aliasing), and plus addressing. We offer Afterlogic Pro (w/ CalDAV and CardDAV), Crossbox, Rainloop, and Roundcube for your choice in webmail. We offer a variety of options for obtaining support. We do expect you to understand how to use email and how to configure your DNS to use our service, but we do offer support when you need us.Starting Price: $15 per month -
19
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 -
20
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 -
21
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 -
22
Mail.com
Mail.com
Choose your email address from our huge selection of domains – from @elvisfan.com to @consultant.com – to suit all your needs. At mail.com you can create a personal and unique email address to express who you are, entirely for free. Start by choosing your username and desired email domain from the 200 domains which are listed below. Become a premium user to benefit from exclusive features. Once you register as a free user, you can easily upgrade your account. mail.com is a free webmail client based in the United States. It offers a wide range of unique email domains, a customizable user interface, as well as numerous useful features integrated in each email account. Purchased in 2010 by the German United Internet Group, Europe's leading internet specialist and one of the world's largest web hosting provider.Starting Price: Free -
23
Terlido
Doteli
Terlido is a cloud-based platform for teams running cold-email campaigns from connected Gmail, Microsoft 365, or SMTP/IMAP mailboxes. Warmup and campaigns share one daily per-mailbox send budget, with recipient-domain throttling, suppression controls, and automatic pauses at bounce or spam thresholds. Before sending, it checks SPF, DKIM, DMARC, and MX records; unsubscribe headers remain on. Sequences combine email, WhatsApp, LinkedIn, and call steps. LinkedIn steps become prepared tasks for a person, not automated account actions. Terlido Newsletter is free for up to 10,000 subscribers. The platform also offers a unified inbox, contact management, campaign analytics, two-way HubSpot sync, and a REST API and MCP server on eligible plans; agent use follows sending limits and workspace controls. Teams can manage outreach campaigns and replies from one workspace.Starting Price: $39/seat/month -
24
lfr
Anonyfox
lfr is self-hosted mail-server and newsletter software packaged as a single Go binary for Linux and macOS servers. It lets developers, self-hosters, and small teams host mailboxes for their domains, manage aliases and forwarding, search and reply to messages, and configure domain mail records. Newsletter tools support double-opt-in signup lists, Markdown-based issues, hosted archives and signup websites, one-click unsubscribe, bounce and complaint handling, and delivery through a configurable SMTP relay when direct sending is unavailable. The command-line interface runs locally or over SSH, with setup and diagnostic commands for server, DNS, and mail delivery tasks. lfr is distributed under the MIT license; the software itself is free, while users arrange and pay for their own server and any optional relay service.Starting Price: $0 -
25
Mail-in-a-Box
Mail-in-a-Box
Mail-in-a-Box lets you become your own mail service provider in a few easy steps. It’s sort of like making your own gmail, but one you control from top to bottom. Technically, Mail-in-a-Box turns a fresh cloud computer into a working mail server. But you don’t need to be a technology expert to set it up. Each Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software. It also includes contacts and calendar synchronization. The box also includes other standard mail functionality like spam protection (spam filtering and greylisting), mail filter rules, email client autoconfiguration, and automated backups to Amazon S3 and other services. The box also includes automatic DNS configuration when you let it become your nameserver so that it can set important DNS records for mail deliverability and security including SPF, DKIM, DMARC, and MTA-STS. When enabled, DNSSEC (with DANE TLSA) provides a higher level of protection.Starting Price: Free -
26
KDMARC
Kratikal Tech
KDMARC is an email authentication and anti-spoofing solution that helps organizations in securing their outbound mail flow. KDMARC's Dynamic SPF feature allows the whitelisting and blacklisting of domains and IPs in a single click on the KDMARC dashboard. Dynamic DMARC allows the change in policy (None, Quarantine and Reject) at real time. The tool is aimed at helping customers take relevant security actions in a timely manner to ensure more robust email security. KDMARC allows organizations to trust their mailbox by ensuring prevention of brand abuse, increasing email deliverability, prohibiting malware & ransomware attacks thus, boosting email engagement rate. -
27
PureMail
PureMail LLC
PureMail provides managed Google Workspace and Microsoft 365 email inboxes for teams running cold-email outreach. Customers supply their own domains and select an inbox volume; PureMail provisions mailboxes, configures SPF, DKIM, DMARC and MX records, and connects accounts to sending platforms such as Instantly, Smartlead, Lemlist and other sequencers. Plans are billed monthly per inbox, with volume-based rates, DNS setup and integration included and no setup fee. Accounts include mobile and web access, while support is available through dashboard tickets. PureMail is intended for lead-generation agencies, B2B sales teams, SDRs, founders and other outbound teams that need multiple business email inboxes. The company also publishes a cold-email tool directory with provider pricing, sending limits and rubric scores.Starting Price: $33/10 emails -
28
Grace Mail
Profit Visions s.r.o. (LINK-V)
Grace Mail is email server software for teams that want control over their email infrastructure. It can be licensed as self-hosted software running on the customer's Linux hardware, or provided as a managed dedicated server operated by LINK-V. The product supports SMTP and IMAP and includes an administration console for managing mailboxes, domains and mail operations. Its two deployment approaches support organizations that want to operate their own server as well as teams that prefer the vendor to operate a dedicated server. Grace Mail is aimed at freelancers, small businesses and technical teams seeking company email on a dedicated or self-hosted server. The software is built and maintained by Profit Visions, and deployment, licensing, migration and support arrangements are agreed with each customer. Customers can assess the self-hosted or managed arrangement against their infrastructure preferences and operational responsibilities. -
29
MailTester Ninja
MailTester Ninja
MailTester Ninja is a sophisticated email verification tool designed to ensure the accuracy and deliverability of your email communications. It offers a comprehensive suite of features, including syntax checks, domain validation, and mailbox verification, to help you maintain a clean and efficient email list. With its intuitive user interface, MailTester Ninja provides rapid and accurate processing of large email volumes, making it ideal for businesses running extensive email marketing campaigns. The platform prioritizes data security with robust encryption protocols and integrates seamlessly with various email marketing platforms and CRM systems. Backed by responsive customer support and flexible pricing plans, MailTester Ninja is the go-to solution for businesses of all sizes looking to reduce bounce rates and enhance email deliverability.Starting Price: $3.99 -
30
Cloudflare Email Service
Cloudflare
Cloudflare Email Service is a cloud email platform for developers building applications, automated workflows, and AI agents. It combines outbound transactional email delivery with inbound email routing and programmable processing. Applications can send through a Workers binding, REST API, or SMTP, while incoming messages can be routed to Cloudflare Workers for validation, transformation, forwarding, and workflow automation. The service supports domain onboarding with SPF, DKIM, and DMARC configuration, and provides delivery logs and account-level controls. Developers can use it to send notifications, account and transaction messages, receive replies, process inbound messages, and connect email events to application logic. It requires Cloudflare DNS and uses the Cloudflare Workers platform for service access and billing; it is not a hosted mailbox or general-purpose email client.Starting Price: $5/month -
31
MorphyMail
MorphyMail
MorphyMail Cold Email Suite is a lifetime-licensed cold outreach stack for businesses, agencies, founders, and sales teams that want to avoid recurring software subscriptions. It combines cloud email campaign management, unlimited subscriber lists, SMTP infrastructure, email verification, prospect finding, inbox warmup, WhatsApp CRM, sales templates, campaign analytics, and deliverability setup guidance including SPF, DKIM, DMARC, and reverse DNS. Users can build targeted lists, verify contacts, manage sequences, monitor opens and clicks, and handle replies from one platform. MorphyMail also offers managed campaign services and onboarding support. Lifetime licensing covers the stated software licences and initial setup; recurring infrastructure and third-party usage may be separately payable where applicable.Starting Price: $249 one-time -
32
DMARC Report
DuoCircle
A DMARC reporting solution for MSPs, service providers, and businesses who need to monitor and manage a large number of domains for DMARC compliance. Block malware and phishing attacks. Monitor domain security and boost deliverability with one easy-to-use platform. With DMARC Report, it’s super easy to monitor email configurations for suspicious activity and stop non-compliant emails before they hit inboxes. This high-volume tool can secure multiple domains for your clients or your business and report on robust analytics from the intuitive dashboard. You can safeguard outbound mail to protect your sender reputation, as well as leverage strong filtering policies for inbound emails. The platform automatically generates aggregate and forensic data reports that track any DMARC failures for your domains. If suspicious activity is detected, DMARC Report will send threat alert notifications to any email address that needs to be in the loop.Starting Price: $100/month/2 million emails -
33
MailJerry
MailJerry
Are you considering moving your emails but feel uncertain about how to proceed? MailJerry is here to simplify your email migration process with its secure and efficient management. With MailJerry, transitioning your emails and mailboxes has never been easier! KEY FEATURES: + Flat Rate Email Migration: Migrate unlimited mailboxes without any data volume limitations. + Bulk Migration: Migrate unlimited mailboxes with the convenient bulk migration including CSV upload. + IMAP Sync: MailJerry keeps your accounts synchronized, even after the migration is complete. + Duplicate Prevention: MailJerry identifies existing data in your account to prevent duplicates from occurring. + Mailbox Health Check: This feature ensures that your new mailbox is ready to accept incoming emails. + Complete Security: Your privacy is a top priority; the application neither accesses nor stores your information. + Direct Cloud Migration: There's no need to download or upload your data!Starting Price: $14.90 per month -
34
Mailpool
Mailpool
Mailpool is an email infrastructure platform built to help teams create domains, inboxes, and deliverability-ready outreach systems in seconds. It lets users buy or import domains, create inboxes instantly, and choose from Mailpool, Google Workspace, Microsoft 365, or dedicated servers while the platform handles the technical setup. Mailpool supports automated DNS configuration, including SPF, DKIM, and DMARC, so teams can avoid complex manual setup and start managing domains and mailboxes from one centralized dashboard. Its AI-powered domain generator suggests relevant, available domain variations based on a primary domain, helping outreach teams prepare domain pools faster for campaigns. It also supports bulk domain purchasing, bulk inbox creation, inbox rotation, rotating IPs, blacklist monitoring, deliverability monitoring, and shared or dedicated IP options for scalable outbound infrastructure.Starting Price: $2.60 per month -
35
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 -
36
Getlead
Getlead
Getlead is an all-in-one B2B lead generation and cold email platform. It replaces separate subscriptions for a lead database, email finder, verifier and sender with one lifetime license. Users scrape fresh leads from 10+ sources (Google Maps, LinkedIn, Instagram, TikTok and more) or search a 420M+ verified B2B contact database with AI-powered ICP filtering by industry, title, size and location. Every email passes live SMTP verification, checking mailbox existence and flagging catch-all domains, keeping bounce rates near 0.51 percent. Built-in cold email sending includes personalization, follow-up sequences, timezone scheduling, inbox rotation and automated warm-up to protect domain reputation, plus SPF, DKIM and DMARC guidance. A lightweight CRM manages replies and pipeline. Free tools include an email finder, verifier, extractor, deliverability test and spam checker. Pricing starts at $9.90 as a one-time payment, no monthly fees or per-seat pricing.Starting Price: $9.90 - Lifetime -
37
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 -
38
Hexamail POP3 Downloader
Hexamail
POP3 Downloader is a high-performance, scalable, real-time POP3 connector for your mail server. It supports downloading and forwarding any POP3 or IMAP account email to any email server that supports SMTP or IMAP. Key Features: 100% Compatibility with all versions of Exchange 100% Compatibility with all SMTP servers End-user management via a web interface Antivirus and Antispam options IMAP Support (with folders) IMAP Push Support Gmail Support 1-minute scheduling No email size limits Microsoft Exchange integration without the need for a public SMTP server or static IP address Migrate or integrate unlimited external POP3 or IMAP email accounts into local mailboxes Continue receiving mail from legacy accounts during migration to a new mail server IMAP migration or IMAP sync between two IMAP servers Reliable, easy to install, and cost-effective solution Streamline your email integration processes and automate email downloads with Hexamail POP3 Downloader.Starting Price: $114/10 users -
39
Inbox.eu
Inbox.eu
Inbox.eu is a privacy-focused email and cloud storage service designed to provide individuals and businesses with secure communication and file management in a single online platform. It offers personal and domain-based email accounts that include large mailboxes, built-in file storage, and tools for sending and sharing large files without the limitations common in many traditional email services. Users can access their inbox from desktop computers, laptops, tablets, or mobile devices through a web interface or standard email protocols such as IMAP, POP3, and SMTP, allowing them to use their preferred email applications. It includes strong privacy and security features such as message encryption, SSL-secured connections, two-step verification, and strict policies that state user data is not shared with advertisers or third parties. -
40
Hosted Email for Shopify
Clover Apps
Custom Email Integrated Into Your Shopify Store with HostedEmail.io. Create unlimited mailboxes, forwards and more on your domain for only $5 per mailbox per month. Each of your team members can log directly into the email accounts they're responsible for from your Shopify Store's back office. Industry leading spam and virus filtering is built right in. Never be bothered by spam again! Includes advanced configuration options for blocking or allowing specific senders or IP addresses. Our email platform is used by hundreds of thousands of domains so you can rest assured you're getting a secure and reliable email solution. With our 20 years of offering class leading business email solutions, we're here to help. Whether it's help getting set up or a problem down the line, we're always on hand to provide excellent support.Starting Price: $5 per mailbox per month -
41
SMTP Senpai
MailSenpai
SMTP Senpai is MailSenpai's EU-hosted SMTP relay and REST email API for password resets, order confirmations, notifications and website forms. Connect via SMTP on port 2525 or 587 with STARTTLS, the REST API, or a form endpoint for static sites. DKIM signing uses your verified sender domain, with SPF/DKIM/DMARC checks and automatic suppression of bounced addresses. The permanent free plan includes 5,000 emails per calendar month, up to 200 per day and 30 in the preceding hour, one verified sender domain and 7-day sending logs. No card or expiry. Paid annual plans start at EUR 12.90 per month plus VAT for 10,000 emails per month and 90-day logs. An email report is sent weekly on Monday. Official WordPress and Drupal plugins and open-source SDKs support integration. Written support is available in English and Italian. MailSenpai is the separate newsletter and email marketing platform.Starting Price: Free -
42
Alibaba Mail
Alibaba Cloud
Alibaba Mail is the only email service provider (ESP) in the industry that supports public cloud services. It provides smart and efficient email management services based on the same security architecture as Tmall and Alipay. Alibaba Mail integrates features such as email management, online calendar, and contact management, and works seamlessly with existing office software applications to achieve better scalability and integration capability. This service offers enterprise users a brand new collaboration software solution. Built on Alibaba Cloud Apsara System, the service provides multiple layers of protection and comprehensive monitoring capability to guarantee your email security. No limits are set on the number of emails in each account. The service overcomes the limits of traditional email services and provides unlimited mailbox storage. -
43
Ballast
Ballast
Ballast is a cold email platform for teams running one-to-one outbound campaigns from their own mailboxes. Users can connect Google Workspace, Gmail, Microsoft 365, or other SMTP/IMAP accounts; import leads; build multistep sequences with personalization and variants; and manage replies in a shared inbox. The platform includes mailbox warmup, sending schedules, domain checks, inbox-placement tests, bounce thresholds that can pause sending, and campaign analytics. Plans are priced by monthly email volume and include unlimited mailboxes and seats, API access, webhooks, and MCP tools. Teams can connect AI models for reply classification and drafting, configure Slack reply alerts, or automate workflows through n8n. CSV presets support lead imports from Apollo, Clay, Instantly, Smartlead, and Lemlist.Starting Price: $19/month -
44
E-Warmup
E-Warmup
E-Warmup is an AI-powered email deliverability and automated inbox warmup platform built to keep campaigns out of spam and the promotions tab. Backed by 10+ years of manual deliverability consulting for 4,000+ clients, E-Warmup pairs your mailboxes with a peer-to-peer network of 40,000+ real inboxes to secure 98% primary inbox placement. Key capabilities: • AI Read Emulation: Simulates authentic human reading speeds, scroll pauses, and multi-language replies instead of detectable bot opens. • Real-Copy Warmup: Train spam filters using your actual sales sequences and niche topics. • Multi-ESP Support: Route warmup through Gmail, Outlook, Zoho, SendGrid, Amazon SES, or custom SMTP. • 24/7 Reputation Shield: Continuous DNS health tracking (SPF, DKIM, DMARC), bounce monitoring, and automated blacklist removal across 100+ lists. • Seed List Warmup: Protect non-SMTP platforms like Klaviyo and Mailchimp. Start warm up & fix your deliverability free in 25 sec.Starting Price: $49/month -
45
Custom Email Hosting
Custom Email Hosting
Custom Email Hosting offers secure, affordable, and professional email services designed for businesses of all sizes. With 99.9% uptime, fast delivery, and reliable performance, the platform ensures uninterrupted communication. Plans include generous storage options, ranging from 10 GB to 1 TB per mailbox, along with support for multiple domains and aliases. Robust security features like spam filtering, virus protection, GDPR compliance, MFA, and end-to-end encryption safeguard sensitive data. The service supports custom domains, DNS management, and seamless integration with Google Workspace, Microsoft 365, and other popular tools. Backed by 24/7 customer support and scalable plans, Custom Email Hosting provides flexibility and peace of mind for growing businesses.Starting Price: $0.99 -
46
Cigati Mail Migration Tool
Cigati Solutions
Cigati Mail Migration Tool is a stand-alone utility with an interactive user interface that is compatible with technical and non-technical users. It is suitable for all the versions of the Windows operating system. This advanced utility facilitates users to backup and migrates all the mailbox data of various email clients into different file formats and email clients. It also allows users to backup and migrate various file formats into various docs, images, and mailbox formats. With the help of this utility, you can import Yahoo Mailboxes to Gmail, Office 365, Thunderbird, IMAP, and other webmail email clients. You can also backup them into PDF, PST, EML, DOC, JSON, PNG, HTML, CSV, etc. This Mail Migration Tool facilitates users to perform multiple useful tasks like export Office 365 mailboxes to PST, backup Gmail emails to PDF, import PST to Office 365, export OST to PST, convert MSG to PDF, etc.Starting Price: $399 one-time payment -
47
MacSonik Gmail Backup Tool
MacSonik
Gmail Backup Tool for Mac is a perfect utility that effortlessly creates the backup of Gmail mailboxes and saves it to a different format like PST, PDF, MBOX, MSG on macOS. Even the application directly import Gmail emails to Office 365, Yahoo Mail, Hotmail, IMAP, etc. It allows users to backup the emails from the Gmail account on MAC OS X. Import Gmail emails to Yahoo, Thunderbird, Amazon Webmail, Icloud, Zoho Mail, etc. Option to set up a backup schedule of Gmail emails. It privileges a feature to free up the server space after the backup of emails. The maximum number of users are looking for a solution to backup their complete Gmail mailboxes in PST formats on a mockup of their MacOS. Here, Gmail Backup Tool for Mac is a top-rated application that helps users mail mailboxes in PST format. Gmail Backup Tool for Mac allows users to import their emails from Gmail to another Gmail account without losing a single piece of data.Starting Price: $49 one-time payment -
48
Sendmux
Sendmux
Sendmux gives AI agents their own inbox and a controlled way to send email. Each agent can receive messages, read threads, handle attachments, send replies, and react to new mail through signed webhooks or Server-Sent Events. Teams can send through Gmail OAuth, Outlook OAuth, SMTP providers, or managed Amazon SES. Sendmux can spread sending across providers with weighted routing, sender-domain routing, health checks, failover, and quotas by second, minute, hour, or day. Developers get Mailbox, Sending, and Management APIs, OpenAPI docs, SDKs, the sendmux CLI, MCP tools, and Sendmux Skills. The platform also covers tenant isolation, mailbox-scoped API keys, custom domains, logs, metrics, and usage-based pricing with no per-seat or per-mailbox fees.Starting Price: $0.15 per 1000 emails -
49
QQ Mail
Tencent
QQ Mail is an email service for people who need to send, receive, organize, and review messages across multiple accounts. Its web service and mobile apps support mail handling, notifications, contact management, and attachments, including previews of documents, images, audio, video, compressed files, and email-message files. The mobile app can bring several mailboxes together, including accounts that use common mail protocols, and provides options for filtering or prioritizing notifications. Additional tools include a calendar, a large-file transfer and temporary storage area, and a notes feature. Users can manage contacts, find related correspondence, read subscription messages, and translate foreign-language messages into Chinese. QQ Mail is available as a free basic service, with optional QQ Mail membership subscriptions offered through the mobile app.Starting Price: $0 -
50
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.
