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Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

[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.

[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.

[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

[0.3.8] - 2023-09-19

Added

  • Journal logging support

Changed

Fixed

[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.

[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)

[0.3.5] - 2023-08-18

Added

  • TCP listener option nodelay.

Changed

Fixed

  • Allow disabling STARTTLS.

[0.3.4] - 2023-08-09

Added

Changed

Fixed

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

[0.3.3] - 2023-08-02

Added

  • Support for referencing context variables from dynamic values.

Changed

Fixed

  • Support for PKCS8v1 ED25519 keys (#20).

[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.

[0.3.1] - 2023-07-22

Added

  • Milter filter support.
  • Match IP address type using /0 mask (#16).

Changed

Fixed

  • Support for OpenLDAP password hashing schemes between curly brackets (#8).
  • Add CA certificates to Docker runtime (#5).

[0.3.0] - 2023-07-16

Added

  • LDAP authentication.
  • subaddressing and catch-all addresses.

Changed

  • Removed concept of databases, lists, remotes lists and replaced it with directories.

Fixed

  • Error when using PKCS8 DKIM private keys.

[0.1.2] - 2023-03-11

Added

  • LDAP authentication.
  • subaddressing and catch-all addresses.

Changed

  • Bump to latest mail-auth.

Fixed

  • Error sender-domain key not available for evaluation.

[0.1.1] - 2023-03-06

Added

Changed

Fixed

  • Only the first TLS certificate is used rather than the full chain (#3)
  • Update name for reject-non-fqdn setting (#6).

[0.1.0] - 2023-03-01

Initial release.