📬 SMTP Server
Tools and servers for managing SMTP (email sending) services.
The best SMTP Server Products based on votes, our collection of reviews, verified products and a total of 280 factors
Top SMTP Server Products
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/kumomta-alternatives
KumoMTA is the world's first Open-Source MTA designed from the ground-up for large-volume senders. Get a fast, flexible, supported solution.
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/citadel-alternatives
Is a collaboration suite (messaging and groupware).
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/courier-mta-alternatives
The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open...
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/bitdefender-box-alternatives
Bitdefender BOX protects all devices connected to the Internet.
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/sendgrid-alternatives
Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free
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/mailhog-alternatives
MailHog is an email testing tool inspired by MailCatcher, but easier to install.
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/xandikos-alternatives
Lightweight CalDAV/CardDAV server on top of Git.
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/blue-mind-alternatives
Blue Mind is a complete solution of company messaging, calendars and collaborative work.
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/esmtp-alternatives
esmtp is a user configurable relay-only Mail Transfer Agent (MTA) with a sendmail compatible syntax.
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/courier-imap-alternatives
The Courier IMAP server is a fast, scalable, enterprise IMAP server that uses Maildirs.
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/mailchimp-alternatives
MailChimp is the best way to design, send, and share email newsletters.
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/mocana-atlas-platform-alternatives
Mocana creates and develops mobile application protection (MAP) app-shielding solutions, enabling users to secure mobile apps
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/infcloud-alternatives
InfCloud is an open source CalDAV/CardDAV web client implementation released under GNU AGPL (version 3.0).