30 May
2011
30 May
'11
12:11 p.m.
which leads to postfix complaining:
May 30 13:28:39 mail postfix/smtpd[25014]: NOQUEUE: reject_warning: RCPT from unknown[193.210.130.67]: 450 4.7.1 Client host rejected: cannot find your reverse hostname, [193.210.130.67]; from=<dovecot-bounces@dovecot.org> to=<hanns@hannsmattes.de> proto=ESMTP helo=<dovecot.org>
If your are checking for reverse hostname and won't accept e-mails if this is not present you will reject a lot of legitimate mail.