v0.6.6

0.6.6 - 2026-05-12

Bug Fixes

• Return HTTP 200 because madmail expects it, and make sure https is immediately retried when SMTP fails (#153)

Features

• Improved SMTP error responses (#147)

Miscellaneous Tasks

• Remove mac and windows from matrix tests (#154)
• Run cmlxc tests in all classic/classic-ipv4/madmail combinations

v0.6.5

0.6.5 - 2026-05-12

Bug Fixes

• (smtp-client) Handle 421 on reused connection (#145)
• Advertise 8BITMIME to prevent conversion after DKIM signing (#149)
• Validate mail data (#150)

Miscellaneous Tasks

• Build and deploy relays with filtermail binary and run interop tests against madmail (#131)

Performance

• (smtp-client) Use pipelining if server advertises support (#146)

v0.6.4

0.6.4 - 2026-05-01

Bug Fixes

• Implement missing "implicit MX" rule

Features

• Https transport channel (#122)

Refactor

• (transport) Explicitly handle RFC7505 null MX

v0.6.3

0.6.3 - 2026-04-20

Features

• (smtp-server) Log malformed SMTP commands (#118)

Performance

• (smtp-client) Cache connections (#117)

v0.6.2

0.6.2 - 2026-04-16

Documentation

• (readme) Reformat README.md (#115)

Features

• Log disabled recipients (#113)
• (transport) Remote delivery over SMTP (#104)

Miscellaneous Tasks

• (dependabot) Update configuration (#114)

v0.6.1

0.6.1 - 2026-04-01

Documentation

• (readme) Fix typo (#99)

Features

• Configurable hosts for listen and reinject (#84)
• (resolver) Enable DNSSEC (#94)
• Add experimental option to disable mailboxes (#108)

Refactor

• Derive Default for Envelope (#100)

v0.6.0

0.6.0 - 2026-03-13

Documentation

• (readme) Fix license link
• (readme) Clarify licensing of the binaries
• (readme) Improve README.md (#88)

Features

• [breaking] Remove IP verification for domain-literals (#90)

Miscellaneous Tasks

• (ci) Fix binary publish job (#79)

Refactor

• Use enum for mode cli arg (#83)

v0.5.2

0.5.2 - 2026-02-27

Bug Fixes

• (logs) Log correct address for outbound messages (#70)

Features

• Check incoming email return address (#72)

Miscellaneous Tasks

• Bump cargo-dist (#73)
• (ci) Build and upload binaries in CI (#76)
• (ci) Add missing Zig dependency (#77)

Refactor

• Check if email is encrypted before verifying DKIM (#71)

v0.5.1

0.5.1 - 2026-02-24

Bug Fixes

• (dkim) Accept TXT records with no v= tag (#62)
• (smtp) Properly handle bounce messages (#63)
• (dkim) Accept TXT records with escaped quotes (#61)
• (logs) Log From address instead of envelope MAIL FROM. (#66)

v0.5.0

0.5.0 - 2026-02-20

Bug Fixes

• (dkim) Make simple header canonicalization work properly (#53)

Features

• Save rejected messages to /tmp (#55)

Refactor

• Do not copy the mail in memory for DKIM verification (#54)