dma, short for DragonFly Mail Agent, is a small mail transfer agent intended for machines that need to submit locally generated mail and deliver it either directly or through a relay server.
It deliberately does not try to replace a full Internet-facing MTA such as Postfix, Exim or Sendmail. In particular, dma does not run an SMTP listener on port 25 for receiving incoming Internet mail.
This restricted scope makes it useful on desktops, workstations, servers and appliances where local programs need a conventional sendmail-compatible mechanism for sending notifications and other email.
This is free and open source software.
Key Features
- Accepts messages submitted by programs on the local machine.
- Can deliver mail directly or through a configured SMTP relay host.
- SMTP authentication for authenticated relay services.
- TLS support for encrypted message transport.
- Local mail delivery.
- Alias handling.
- Queues messages when immediate delivery is not possible.
- Small codebase and straightforward configuration.
- Provides a sendmail-compatible interface for local applications.
- Does not listen for incoming Internet SMTP connections.
- Suitable for systems that do not need a complete inbound mail server.
- Cross-platform support – runs on Linux and BSD-family operating systems.
Website: github.com/corecode/dma
Support:
Developer: Simon Schubert
License: BSD 3-Clause License
dma is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Email Servers | |
|---|---|
| Exim | Highly configurable mail transfer agent |
| OpenSMTPD | Implementation of the server-side SMTP protocol with additional extensions |
| mox | Modern, secure, all-in-one email server |
| DBMail | Enables storing and retrieving mail messages from a database |
| WildDuck | Opinionated email server |
| Stalwart | All-in-one mail and collaboration server |
| Mailu | Self-hosted mail server stack |
| Mail-in-a-Box | Self-hosted email server solution |
| Postfix | Popular mail transfer agent |
| Maddy | Composable all-in-one mail server |
| Haraka | Modern SMTP server |
| Dovecot | Secure POP3 server that supports mbox and maildir mailboxes |
| Courier | Integrated mail/groupware server |
| Cyrus IMAP | Email, contacts and calendar server |
| Zimbra | Zimbra Collaboration Suite |
| Modoboa | Mail hosting and management platform |
| Citadel | Exchange-killer groupware server |
| chasquid | SMTP server with a focus on simplicity, security, and ease of operation |
| Sendmail | Mail transfer agent for sophisticated mail configurations |
| dma | DragonFly Mail Agent |
| DavMail | POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway |
Read our verdict in the software roundup.
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