foxcpp/maddy v0.2.0

maddy 0.2

on GitHub

Stability: This version is believed to be stable enough for use in use
non-critical deployments. Database structure for sql (imapsql) module is
compatible with 0.1. Configuration requires some changes.

Incompatible changes & migration notes

• alias_file is replaced with generic replace_rcpt module that can use any "table"-like structure for lookups.
  Migration: Replace alias_file /etc/maddy/aliases with replace_rcpt file_table /etc/maddy/aliases.

• replace_rcpt now relies on tables to handle regexp and static replacements.
  Migration: Replace replace_rcpt postmaster postmaster@$(primary_domain)
  with replace_rcpt static { entry postmaster postmaster@$(primary_domain).
  Replace replace_rcpt "(.+)\+(.+)@(.+)" "$1@$3" with
  replace_rcpt regexp "(.+)\+(.+)@(.+)" "$1@$3".

• Module sql is renamed to imapsql. Change its name in the
  configuration block definition for local_mailboxes/local_authdb.

• Configuration parser now requires a new line after } closing the block.

New features

• Authentication code is refined and generalized. It permits the implementation
  of additional more complex SASL mechanisms such as TLS client certificate
  authentication and OAuth2 support. These are not implemented in 0.2 though.
  What is currently accessible is the ability to use multiple password-based
  authentication providers to allow user login based on any match from any
  credentials store configured.

• Generic Postfix-like string lookup abstraction is introduced. Alias rewriting
  is updated to use. Additionally, it is possible to use it for password-based
  authentication now. Currently implemented "tables" are: identity (returns
  the lookup key), dummy (empty table), sql_table (returns the result of
  a SQL query), static (hardcoded mapping), regexp (Regular
  Expression-based rewrite of lookup key).

• sign_dkim module now supports multiple domains in a single configuration,
  avoiding the need for complex dispatching.

• maddy -v output now includes compile-time defaults for state_dir,
  runtime_dir and configuration path.

• build.sh script can now customize default values for state_dir and
  runtime_dir.

Bug fixes

• Fix race in file_table reload test (a91d8c2)
• Fix misuse of TriesCount in queue (ceda725)
• Fix queue retry delay calculation (4b3e7ce)

Build artifacts

🔒 Attached tarballs are signed using PGP key 3197 BBD9 5137 E682 A597 17B4 34BB 2007 0813 96F4

Build artifacts are produced using the same environment as 0.1.