-- Switched to buffered output when performing TLS encryption in the SMTP
- MTA to increase performance.
-- mh-e support has been changed so that it is always compiled into nmh;
- old features that were previously enabled by the MHE option have been
- garbage collected.
-- Old code enabled by the UCI preprocessor definition has been
- garbage-collected.
-- LOCKDIR is now configurable via --enable-lockdir