Is there now more strict checking for RTAddressRegexp in 3.8.8? I don’t
remember getting this error in the past.
[Mon Jun 7 19:42:01 2010] [error]: The RTAddressRegexp option is not
set in the config. Not setting this option results in additional SQL
queries to check whether each address belongs to RT or not. It is
especially important to set this option if RT recieves emails on
addresses that are not in the database or config.