Suddenly in the last few days we seem to be unable to send mail out of our
RT as far as we know nothing has changed.
If you look within RT than it says it has sent mail and lists al the
addresses correctly however, if you watch the system log it then strips all
the mail addresses and instead send all mail to -@ourmaildomain.com and
hence bounces back to me as the admin.
Normal mail and mail to RT is working fine through the server. The mail
server is sendmail.
We did upgrade to the latest RT At the start of the week from 3.8.2 if that
makes any difference.