Am 02.10.2012 02:56, schrieb Jason T. Slack-Moehrle: >>> So it looks like incoming e-mail might be working now, outgoing >>> not so much. >> >>> Oct 1 16:34:03 www postfix/smtp[3362]: connect to >>> gmail.com[74.125.224.149]:25: Connection timed out >> >> This looks quite like a "disable_dns_lookups=yes" issue. The question >> then would be: how was it working before? > > $ postconf -n > disable_dns_lookups = yes > > I now changed it to 'no' and things seem to be working again. > > I dont understand why, though, this would be creating the problem. > Could you explain?
see docs: http://www.postfix.org/postconf.5.html#disable_dns_lookups disable_dns_lookups (default: no) > If it creates this problem, why do people set it? nobody does set it global it makes sense on internal transports like LMTP in master.cf but NOT as global setting! dbmail-lmtp unix - - n - - lmtp -o disable_dns_lookups=yes -o max_use=100
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