Release Notes: This release contains back-ported fixes from Postfix 2.3. The PostgreSQL client was updated after major database API changes in response to PostgreSQL security issues. The Postfix SMTP client enforced Mandatory TLS only when talking to an ESMTP server.
Release Notes: This release fixes minor problems with TLS and Milter support that were found in the first weeks of Postfix 2.3 deployment.
Release Notes: DSN support. Major updates to the TLS support. Milter application support, compatible with Sendmail version 8.13.6 and earlier. Enhanced status codes (RFC 3463). Configurable bounce messages with support for non-ASCII character sets. Plug-in support for SASL authentication in the Postfix SMTP server and client. Support for sender-dependent ISP accounts. Smarter utilization of cached SMTP connections. Support for empty MX records. The SMTP client implements both the SMTP and LMTP protocols. All delay logging has sub-second resolution.
Release Notes: "sendmail -t" did not remove the CR from lines ending in CRLF. A workaround was made for fatal errors in PCRE maps when an expression in () matches empty text (since the PCRE library returns an inappropriate error code). Fixes were made for non-security bugs that were found in code that handles impossible error conditions.
Release Notes: This release consists mostly of a collection of back-ported fixes from the Postfix 2.3 development branch. Most of this patch hardens the TLS implementation against DNS-based attacks, and eliminates some anomalies from the TLS per-site policy engine. It also adds a workaround that prevents Postfix from repeatedly trying to deliver mail to domains with a malformed MX record (for example, with a null MX hostname). It bounces such mail immediately.
Release Notes: This release preserves upper/lower case information while mapping addresses with canonical, virtual, relocated, or generic maps. Some obscure behavior was removed from the smtp_tls_per_site without a change in the user interface.
Release Notes: This release backed out of a workaround for broken servers and firewalls that created more problems than it solved.
Release Notes: This release provides a plugin architecture for SASL authentication.
Release Notes: This release catches up with minor fixes that were fielded earlier in the experimental Postfix 2.3 snapshots.
Release Notes: This release adds configurable text for (non)delivery status notifications and support for multiple ISP accounts, implemented with sender-dependent relayhosts and with sender-dependent SASL passwords.