Right now the postmaster mails generated by notify_classes do not contain any timing information (except for the date of the notification mail sent). If theses mails had timing information (see example below), timeout problems could be diagnosed much easier:
Mar 28 08:30:00 Out: 220 octree.de ESMTP Postfix Mar 28 08:30:00 In: EHLO mailout07.t-online.de Mar 28 08:30:00 Out: 250-octree.de Mar 28 08:30:00 Out: 250-PIPELINING Mar 28 08:30:00 Out: 250-SIZE 102400000 Mar 28 08:30:00 Out: 250-VRFY Mar 28 08:30:00 Out: 250-ETRN Mar 28 08:30:00 Out: 250-AUTH PLAIN Mar 28 08:30:00 Out: 250-AUTH=PLAIN Mar 28 08:30:00 Out: 250-ENHANCEDSTATUSCODES Mar 28 08:30:00 Out: 250-8BITMIME Mar 28 08:30:00 Out: 250 DSN Mar 28 08:30:00 In: MAIL FROM:<info at sender.example.com> SIZE=112002 Mar 28 08:30:00 Out: 250 2.1.0 Ok Mar 28 08:30:00 In: RCPT TO:<architekten at recipient.example.com> Mar 28 08:30:00 Out: 250 2.1.5 Ok Mar 28 08:30:00 In: DATA Mar 28 08:30:00 Out: 354 End data with <CR><LF>.<CR><LF> Mar 28 08:35:00 Out: 451 4.3.0 Error: queue file write error ======== -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de