DBMail takes a different approach to traditional mail storage. Instead of keeping users’ messages in filesystem-based mailbox formats, it stores messages and associated metadata in a relational database.
This architecture can simplify replication, backup and high-availability arrangements, while allowing multiple DBMail processes or servers to access the same underlying mail store.
DBMail provides services for retrieving and delivering email and can be combined with a separate mail transfer agent. It also integrates with external authentication systems, allowing installations to avoid creating local system accounts for every mailbox.
This is free and open source software.
Key Features
- Stores mail and metadata in SQL databases rather than filesystem mailboxes.
- Supports MySQL, PostgreSQL, SQLite and Oracle databases.
- IMAP and POP3 access to stored messages.
- LMTP support for message delivery.
- SQL and LDAP authentication backends.
- Integrated Sieve filtering.
- TLS support for encrypted connections.
- Multiple DBMail processes can share the same database.
- Suitable for database replication and high-availability configurations.
- Does not require a corresponding system user for every mailbox.
- Flexible per-service logging.
- Can be integrated with MTAs such as Exim and Postfix.
Website: github.com/dbmail/dbmail
Support:
Developer: DBMail developers
License: GNU General Public License v2.0
DBmail 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 |
| qmail | Written as a more secure replacement for the Sendmail program |
| dma | DragonFly Mail Agent |
| DavMail | POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway |
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