Postfix stable release 3.3.1, and legacy releases 3.2.6, 3.1.9, 3.0.13 for CentOS and RHEL 6,7

The latest Postfix releases are now available in my yum repos and include the following fixes.

Fixed in Postfix 3.3:
Postfix did not support running as a PID=1 process, which complicated Postfix deployment in containers. The "postfix start-fg" command will now run the Postfix master daemon as a PID=1 process if possible.

Segfault in the postconf(1) command after it could not open a Postfix database configuration file due to a file permission error (dereferencing a null pointer).

Fixed in Postfix 3.3, 3.2, 3.1, 3.0:
The luser_relay feature became a black hole, when the luser_relay parameter was set to a non-existent local address (i.e. mail disappeared silently).

Missing error propagation in the tlsproxy(8) daemon could result in a segfault after TLS handshake error (typically, dereferencing a 0xffff...ffff pointer). This daemon handles the TLS protocol when a non-whitelisted client sends a STARTTLS command to postscreen(8).

Fixed in Postfix 3.2, 3.1, 3.0:

Added more than 20 missing *_maps parameter names to the default proxy_read_maps setting, making the proxymap service easier to use.

To avoid spurious warning messages, the postconf(1) command now scans only built-in or service-defined parameter values (including their $name expansions) for ldap, *sql, etc. database names.