Ok thanks. i remove mynetworks = 0.0.0.0/0 and add
relay_domains = mydomain.org.ar The mail is accepted but this happend, and the mail dosent arrive: Oct 31 12:45:04 postfix postfix/smtpd[1843]: connect from mail-pf0-f181.google.com[209.85.192.181] Oct 31 12:45:05 postfix postfix/smtpd[1843]: 3BBC2AFC0A: client=mail-pf0-f181.google.com[209.85.192.181] Oct 31 12:45:05 postfix postfix/cleanup[1844]: 3BBC2AFC0A: message-id=<camu5q3dn1okw93odj+pcdzqsv78oxawmsegyfu5bgkrnrq-...@mail.gmail.com> Oct 31 12:45:05 postfix postfix/qmgr[1830]: 3BBC2AFC0A: from=<pablo...@gmail.com>, size=2697, nrcpt=1 (queue active) Oct 31 12:45:05 postfix postfix/smtpd[1846]: connect from unknown[172.16.0.1] Oct 31 12:45:05 postfix postfix/smtp[1845]: warning: host postfix.mydomain.org.ar[190.4.116.195]:25 greeted me with my own hostname postfix.mydomain.org.ar Oct 31 12:45:05 postfix postfix/smtp[1845]: warning: host postfix.mydomain.org.ar[190.4.116.195]:25 replied to HELO/EHLO with my own hostname postfix.mydomain.org.ar Oct 31 12:45:05 postfix postfix/smtp[1845]: 3BBC2AFC0A: to=<ad...@mydomain.org.ar>, relay=postfix.mydomain.org.ar[190.4.116.195]:25, delay=0.23, delays=0.2/0.01/0.02/0, dsn=5.4.6, status=bounced (mail for mydomain.org.ar loops back to myself) Oct 31 12:45:05 postfix postfix/smtpd[1846]: disconnect from unknown[172.16.0.1] Oct 31 12:45:05 postfix postfix/cleanup[1844]: 734A3AFC0C: message-id=<20171031154505.734a3af...@postfix.mydomain.org.ar> Oct 31 12:45:05 postfix postfix/qmgr[1830]: 734A3AFC0C: from=<>, size=4695, nrcpt=1 (queue active) Oct 31 12:45:05 postfix postfix/bounce[1847]: 3BBC2AFC0A: sender non-delivery notification: 734A3AFC0C Oct 31 12:45:05 postfix postfix/qmgr[1830]: 3BBC2AFC0A: removed Oct 31 12:45:05 postfix postfix/smtpd[1843]: disconnect from mail-pf0-f181.google.com[209.85.192.181] Oct 31 12:45:07 postfix postfix/smtp[1848]: 734A3AFC0C: to=<pablo...@gmail.com>, relay=gmail-smtp-in.l.google.com[64.233.190.26]:25, delay=1.9, delays=0/0.01/0.59/1.3, dsn=2.0.0, status=sent (250 2.0.0 OK 1509465129 w2si557428vkh.72 - gsmtp) Oct 31 12:45:07 postfix postfix/qmgr[1830]: 734A3AFC0C: removed 190.4.116.195=my public ip (not really) 172.15.1.1 = a internal ip (firewall) -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html