Simon, Have you looked at the Mail.App logs on the user's system itself, or attempted to turn up the debugging level on Mail.App and have it write a log file? It is (somewhat) Unix-y after all.
https://blogs.oracle.com/chienr/entry/debugging_os_x_mail_app http://hints.macworld.com/article.php?story=2004101603285984 Those are just from a quick Google search. They're old (2007 and 2004 respectively), but the application itself probably has a help file when launched via the command line, like most other things Unix-y. Fire up Terminal and go to town... it's likely the client software itself can tell you what the problem is (or it's perceived problem is) with your DBMail server. -- Nate Duehr _______________________________________________ DBmail mailing list DBmail@dbmail.org http://mailman.fastxs.nl/cgi-bin/mailman/listinfo/dbmail