v0.6.0

[0.6.0] - 2024-02-14

This version introduces breaking changes in the configuration file. Please read the UPGRADING.md file for more information on how to upgrade from previous versions.

Added

• Distributed and fault-tolerant SMTP message queues.
• Distributed rate-limiting and fail2ban.
• Expressions in configuration files.

Changed

Fixed

• Do not include STATUS in IMAP NOOP responses (#234).
• Allow multiple SMTP HELO commands.

v0.5.0

[0.5.0] - 2023-12-27

This version introduces some breaking changes in the configuration file. Please read the UPGRADING.md file for more information.

Added

• Spam databases can now be stored in any of the supported data stores or Redis. It is no longer necessary to have an SQL server to use the spam filter.
• LDAP bind authentication, to support some LDAP servers such as lldap which do not expose the userPassword attribute.

Changed

Fixed

• Spamhaus DNSBL return codes.
• CLI tool reports authentication errors rather than a parsing error.

v0.4.0

[0.4.0] - 2023-10-25

This version introduces some breaking changes in the configuration file. Please read the UPGRADING.md file for more information.

Added

• Built-in Spam and Phishing filter.
• Scheduled queries on some directory types.
• In-memory maps and lists containing glob or regex patterns.
• Remote retrieval of in-memory list/maps with fallback mechanisms.
• Macros and support for including files from TOML config files.

Changed

• config.toml is now split in multiple TOML files for better organization.
• BREAKING: Configuration key prefix jmap.sieve (JMAP Sieve Interpreter) has been renamed to sieve.untrusted.
• BREAKING: Configuration key prefix sieve (SMTP Sieve Interpreter) has been renamed to sieve.trusted.

Fixed

v0.3.8

[0.3.8] - 2023-09-19

Added

• Journal logging support

Changed

Fixed

v0.3.7

[0.3.7] - 2023-09-05

Added

• Option to allow unencrypted SMTP AUTH (#72)
• Support for rcpt-domain key in rcpt.relay SMTP rule evaluation.

Changed

Fixed

• SMTP strategy Ipv6thenIpv4 returns only IPv6 addresses (#70)
• Milter DATA command is sent after headers which causes ClamAV to hang.
• Sieve redirect of unmodified messages does not work.

v0.3.6

[0.3.6] - 2023-08-29

Added

• Arithmetic and logical expression evaluation in Sieve scripts.
• Support for storing query results in Sieve variables.
• Results of SPF, DKIM, ARC, DMARC and IPREV checks available as environment variables in Sieve scripts.
• Configurable protocol flags for Milter filters.
• Fall-back to plain text when STARTTLS fails and starttls is set to optional.

Changed

Fixed

• Do not panic when hash = 0 in reports. (#60)

v0.3.5

[0.3.5] - 2023-08-18

Added

• TCP listener option nodelay.

Changed

Fixed

• Allow disabling STARTTLS.

v0.3.4

[0.3.4] - 2023-08-09

Added

Changed

Fixed

• Missing envelope keys in rewrite rules (#25)
• Remove CRLF from Milter headers

v0.3.3

[0.3.3] - 2023-08-02

Added

• Support for referencing context variables from dynamic values.

Changed

Fixed

• Support for PKCS8v1 ED25519 keys (#20).

v0.3.2

[0.3.2] - 2023-07-28

Added

• Sender and recipient address rewriting using regular expressions and sieve scripts.
• Subaddressing and catch-all addresses using regular expressions (#10).
• Dynamic variables in SMTP rules.

Changed

• Added CLI to Docker container (#19).

Fixed

• Workaround for a bug in sqlx that caused SQL time-outs (#15).
• Support for ED25519 certificates in PEM files (#20).
• Better handling of concurrent IMAP UID map modifications (#17).
• LDAP domain lookups from SMTP rules.