Hi! Just created a new branch for zope.sendmail. This is a result of the state machine analysis work I did on it after finding that it was creating problems on sending mail to our smart host... svn+ssh://grantma@svn.zope.org/repos/main/zope.sendmail/branches/grantma-retryfixes with lots of juicy new fixes including: - Restructured SMTP mailer and QueueProcessorThread so that all SMTP error logic is in the mailer. Clears the way for another mailer for /usr/sbin/sendmail command line can be used with QueueProcessorThread. - Added ability for QueueProcessorThread so that it can handle temporary failures in delivery to its smart host - ie administrator reconfiguring mailserver, mail server reboot/restart This was the main error path that was missing from the trunk code's state machine. - Formatted log messages in a consistent fashion so that they can be grepped out of z3.log - Added maildir message filename to log messages as message id - allows easy analysis/triage of mail message sending problems - Added optional cleaning of lock links to QueueProcessorThread so that messages can be resent immediately on Zope3 restart. - Added pollingInterval (ms), cleanLockLinks (boolean), and retryInterval (seconds) configure options to configure.zcml. Comments welcomed. I know it is a major portion of code and a bit of a restructure, but I have created unit tests for all my major changes. It includes all the stuff that was missing and that was needed for our production server. I imagine that all of this will prove to be really useful when it is added to the trunk zope.sendmail Cheers, Matthew Grant