Hi! I've setup a Postfix like this, having on the submission port a bigger value than the message_size_limit specified in main.cf
main.cf message_size_limit = 10000000 master.cf smtp inet n - n - - smtpd submission inet n - n - - smtpd -o message_size_limit=20000000 What I found is that , even tough the SIZE announced in reply to EHLO is correct ( 10000000 for port 25 and 20000000 for the port 587 ) Postfix wouldn't accept an Email bigger that 10000000. At first it looked strange but after digging around the documentation I found that cleanup also uses message_size_limit and both default and submission passes the message to the same cleanup service. I'm writing this message so it could be in the archive to help other with similar problem. If it make sense, http://www.postfix.org/postconf.5.html#message_size_limit could have a note on this. btw: I fix this by overrriding the cleanup message_size_limit cleanup unix n - - - 0 cleanup -o message_size_limit=20000000 José Borges Ferreira
