There are many alternatives to Sendmail for Linux if you are looking for a replacement. The best Linux alternative is Postfix, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Sendmail and 18 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Sendmail are Zentyal, Zimbra Collaboration Suite, Exim and OpenSMTPD.
Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail. It attempts to be fast, easy to administer, and secure. The software is also known by its former names VMailer and IBM Secure Mailer.
Almost everyone thinks Postfix is a great Sendmail alternative.
Postfix is the most popular Mac & Linux alternative to Sendmail.
Postfix is the most popular Open Source & free alternative to Sendmail.
Integrates native Active Directory and all essential network services, including domain, mail, gateway, infrastructure, and security roles, for SMBs, offering web-based management, centralized authentication, file server, VPN, and firewall in a single Linux platform.
Zentyal is the most popular commercial alternative to Sendmail.
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
Zimbra Collaboration Suite is the most popular Web-based alternative to Sendmail.
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
OpenSMTPD is a FREE implementation of the server-side SMTP protocol as defined by RFC 5321, with some additional standard extensions. It allows ordinary machines to exchange e-mails with other systems speaking the SMTP protocol.
sSMTP is a simple MTA to deliver mail from a computer to a mail server. sSMTP is simple and lightweight, there are no daemons or anything hogging up CPU; Just sSMTP. Unlike Exim4, sSMTP does not receive mail, expand aliases, or manage a queue.
The Courier mail transfer agent (MTA) is an integrated mail/groupware server based on open commodity protocols, such as ESMTP, IMAP, POP3, LDAP, SSL, and HTTP. Courier provides ESMTP, IMAP, POP3, webmail, and mailing list services within a single, consistent, framework.
A small Mail Transport Agent (MTA), designed for home and office use. Part of DragonFly BSD , it accepts mails from locally installed Mail User Agents (MUA) and delivers the mails either locally or to a remote destination.
Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.
In the default mode, it transmits a mail to an SMTP server (for example at a free mail provider) which takes care of further delivery.
BulkMTA is Commercial Mail Server Similar to PowerMTA. IP Rotation, DKIM, Sender / Receiver Rate limiting.
An SMTP client that is extremely easy to configure and use, providing a simple HTTP API that is used for sending emails.
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