Sendmail 8.12.0 has been released with focus on security and
Apart from containing a fix for command line processing issue,
which is also included in 8.11.6, it comes with default
configuration as non set-user-ID root. This is one of the long
awaited Sendmail features.
Performance improvments are due to:
a new I/O layer that provides buffered file I/O on all
the use of memory pools have helped remove memory leaks and
sendmail now forks less in the SMTP server.
e-mails to multiple recipients can now be split into several
envelopes to enable concurrent delivery, which can significantly
reduce the delivery times for mailing lists or large aliases.
introduction of queue groups to allow control over the
selection of queue directories and queue related policies, e.g.,
how often queues are run and how many processes are used to run