Преинсталирах си postfix-a и вече настройките му са по default. След като опитах да изпратя е-мейл получих следните логове...
Feb 25 18:30:09 Server1 postfix/smtp[11480]: 71BF9410A7: to=<dimityr.lozev@gmail.com>, relay=gmail-smtp-in.l.google.com[173.$
Feb 25 18:30:09 Server1 postfix/cleanup[11475]: DEA50409E6: message-id=<20140225163009.DEA50409E6@Server1>
Feb 25 18:30:09 Server1 postfix/qmgr[11474]: DEA50409E6: from=<>, size=2891, nrcpt=1 (queue active)
Feb 25 18:30:09 Server1 postfix/bounce[11498]: 71BF9410A7: sender non-delivery notification: DEA50409E6
Feb 25 18:30:09 Server1 postfix/qmgr[11474]: 71BF9410A7: removed
Feb 25 18:30:10 Server1 postfix/smtp[11477]: connect to gmail-smtp-in.l.google.com[2a00:1450:4001:c02::1b]:25: Network is un$
Feb 25 18:30:10 Server1 postfix/smtp[11500]: connect to gmail-smtp-in.l.google.com[2a00:1450:4001:c02::1b]:25: Network is un$
Feb 25 18:30:10 Server1 postfix/smtp[11478]: connect to mx-balancer.mail.bg[2001:67c:16b8::ffff:2]:25: Network is unreachable
Feb 25 18:30:10 Server1 postfix/smtp[11478]: C5F0240E41: to=<peter85@mail.bg>, relay=mx-balancer.mail.bg[193.201.172.96]:25,$
Feb 25 18:30:10 Server1 postfix/smtp[11478]: C5F0240E41: lost connection with mx-balancer.mail.bg[193.201.172.96] while send$
Feb 25 18:30:10 Server1 postfix/qmgr[11474]: C5F0240E41: removed
Feb 25 18:30:10 Server1 postfix/smtp[11480]: DEA50409E6: to=<peter85@mail.bg>, relay=mx-balancer.mail.bg[193.201.172.96]:25,$
Feb 25 18:30:10 Server1 postfix/smtp[11480]: DEA50409E6: lost connection with mx-balancer.mail.bg[193.201.172.96] while send$
Feb 25 18:30:10 Server1 postfix/qmgr[11474]: DEA50409E6: removed
Feb 25 18:30:11 Server1 postfix/smtp[11481]: 8284E40DE5: to=<dimityr.lozev@gmail.com>, relay=gmail-smtp-in.l.google.com[173.$
Feb 25 18:30:11 Server1 postfix/cleanup[11475]: AC77840E41: message-id=<20140225163011.AC77840E41@Server1>
Feb 25 18:30:11 Server1 postfix/qmgr[11474]: AC77840E41: from=<>, size=2937, nrcpt=1 (queue active)
Feb 25 18:30:11 Server1 postfix/bounce[11499]: 8284E40DE5: sender non-delivery notification: AC77840E41
Feb 25 18:30:11 Server1 postfix/qmgr[11474]: 8284E40DE5: removed
Feb 25 18:30:12 Server1 postfix/smtp[11478]: connect to gmail-smtp-in.l.google.com[2a00:1450:4001:c02::1a]:25: Network is un$
Feb 25 18:30:17 Server1 postfix/smtp[11479]: 54E54421BA: to=<dimityr.lozev@gmail.com>, relay=gmail-smtp-in.l.google.com[173.$
Feb 25 18:30:17 Server1 postfix/cleanup[11475]: 9B4F840DE5: message-id=<20140225163017.9B4F840DE5@Server1>
Feb 25 18:30:17 Server1 postfix/qmgr[11474]: 9B4F840DE5: from=<>, size=2937, nrcpt=1 (queue active)
Feb 25 18:30:17 Server1 postfix/bounce[11499]: 54E54421BA: sender non-delivery notification: 9B4F840DE5
Feb 25 18:30:17 Server1 postfix/qmgr[11474]: 54E54421BA: removed
$ is unreachable
А в mail.err нямаше нищо ново.