Open Source Mac Mail Transfer Agents
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Mail Transfer Agents for Mac
View 6 business solutionsBrowse free open source Mail Transfer Agents and projects for Mac below. Use the toggles on the left to filter open source Mail Transfer Agents by OS, license, language, programming language, and project status.
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E-MailRelay
SMTP email proxy and relay server
E-MailRelay is a simple SMTP proxy and relay MTA, written in C++, for Linux and Windows. As a proxy all messages can be passed through a user-defined program, such as a spam-filter, which can drop, readdress, or edit messages as they pass through. -
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mailsend
A program to send mail via SMTP from command line
mailsend is a simple command line program to send mail via SMTP protocol. It can send a piece of alert mail from a program in a networked Windows machine. It's feature-filled, cross-platform, free and open source, and does not use any config file. -
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ZMail allows you to send email from anyone, to anyone. You can use ZMail to send fake or anonymous emails. Have fun!
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Pure Perl implementation of the Milter protocol used by Sendmail, including drop-in replacement for the Sendmail::Milter interface.
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jwSMTP, Send email programmatically (C++ code/lib). Linux, BSD, Windows etc. Attachments, Multiple recipients, Cc/Bcc recipients supported. MX lookup or send to an SMTP server direct. LOGIN and PLAIN authentication now supported. Html or plain text forma
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YPOPs! is an application which emulates a POP3/SMTP mail server and provides free POP3 and SMTP access to Yahoo! Mail. It does not depend on Yahoo's POP3/SMTP mail server. You can use a mail client of your choice!
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hotwayd/hotsmtpd are POP3/SMTP-HTTPMail gateway daemons. The HTTPMail protocol is used by the mail servers Hotmail, Lycos, Spray and MSN. The hotway suite you can receive and send mail via these services using any POP3/SMTP compliant mail reader.
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PyWebMail is a Python library and POP3 gateway that enable working with WebMail servers like with POP3 or IMAP mail server. Currently Mail.Com, Yahoo! Mail, Gmail, Netscape.Net, HotMail and some minor servers support is finished.
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A small, fast, secure, anti-spam SMTP mail server (MTA). Delivery to mbox files and Maildirs supported. qwik-smtpd supports RBL, relay checking, raw/custom message handlers, and more. Custom authentication via checkpassword and a qmail-compatible configu
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This is a module PostNuke for those who like to give emailforwarding to their users. It simply allows users to make/edit a .qmail-{pn_uid} file in a directory (configured by the siteadmin).
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smtptrapd is a multi-threaded daemon written in C that provides a RFC 2821 compliant SMTP service that always returns a 4xx soft error to the RCPT TO verb. It can be deployed as a secondary MX to reduce the amount of inbound spam.
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This anonymous emailer script written in PHP is a free, opensource project designed to send EMails from anyone to anyone, with additional details such as Reply-To ,an anti-spam CAPTCHA and a WYSIWYG.
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Anti-Bot Form Mailer is a PHP script that helps webmasters reducing spam received via their contact or support form.
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A SMTP-Proxy that allows authenticated SMTP sessions to traverse, while stopping SMTP sessions from internet worms and SPAM bots. It can also be used transparently so clients need no additional settings, just auth. to their freemail of choice.
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Email2Fax and Fax2Email gateway for Asterisk, that could be integrated to your own existing Asterisk.
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CRM114 MILTER
CRM114 milter for sendmail
This is a milter which scans emails with CRM114 -
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API similar to Java-Mail (TM). This API is to be in C# and will be available for the dotNet-aware platforms.
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This is a PHP class to send mesages through a SMTP server, that allows user auth and send some message types, like plain text or html.
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DKIM for JavaMail is a small JAR that can be easily implemented in existing Java projects using JavaMail for sending DKIM signed emails.
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The goal of this project is to develop a very simple SMTP server that responds to SMTP requests and makes received messages available for query at a later time. All useful features for a SMTP server that can be used in an automated testing suite.
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JavaEmailer is a Java Classes Library that allows Java developers to easily integrate a mass mailer to their applications. JavaEmailer manages file attachments, SMTP servers, CCs, BCCs, plain text and/or html messages, and more...
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Exfix (Exchange forwarding fixer) allows users of Outlook Web Access who do not have IMAP enabled on their account to forward their email to another address.
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DSN Support for Exim. This patch allows Exim 4.xx to support the sending of email Delivery Status Notifications. From Exim 4.83 onwards DSN is now included as standard (based on this patch). dsn_process was a removed option of this standard inclusion and so the patches after 4.76 will re-enable that functionality and provide a binary with the same options / configurations as previously.