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Old 17th October 2008, 16:26
marpada marpada is offline
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Quote:
Originally Posted by satimis View Post
I think nothing in connection with DNS resolution.


I found the trick. If the address is satimis@satimis.com the mail is rejected.


# tail /var/log/mail.log
Code:
Oct 17 11:58:26 xen01 postfix/smtp[1717]: 8BAEA205A8: to=<satimis@satimis.com>, relay=mail.satimis.com[220.232.213.178]:25, delay=1.2, delays=1.1/0.01/0.09/0, dsn=5.4.6, status=bounced (mail for mail.satimis.com loops back to myself)
Oct 17 11:58:26 xen01 postfix/cleanup[1716]: 7C32720673: message-id=<20081017115826.7C32720673@xen01.satimis.com>
Oct 17 11:58:26 xen01 postfix/qmgr[1534]: 7C32720673: from=<>, size=3195, nrcpt=1 (queue active)
Oct 17 11:58:26 xen01 postfix/bounce[1720]: 8BAEA205A8: sender non-delivery notification: 7C32720673
Oct 17 11:58:26 xen01 postfix/qmgr[1534]: 8BAEA205A8: removed
Oct 17 11:58:26 xen01 postfix/smtpd[1718]: disconnect from unknown[220.232.213.178]
Oct 17 11:58:26 xen01 postfix/smtpd[1712]: disconnect from web35201.mail.mud.yahoo.com[66.163.179.80]
Oct 17 11:58:30 xen01 postfix/smtp[1717]: 7C32720673: host d.mx.mail.yahoo.com[66.196.82.7] refused to talk to me: 421 Message from (220.232.213.178) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html
Oct 17 11:58:31 xen01 postfix/smtp[1717]: 7C32720673: to=<satimis@yahoo.com>, relay=g.mx.mail.yahoo.com[209.191.88.239]:25, delay=5.5, delays=0/0/4.6/0.89, dsn=2.0.0, status=sent (250 ok dirdel)
Oct 17 11:58:31 xen01 postfix/qmgr[1534]: 7C32720673: removed

If addressing the mail to satimis@xen01.satimis.com it arrived.
When the client wants to send a mail to @satimis.com, it must resolve the MX record for the satimis.com domain (that is, mail.satimis.com), so I suggest to check DNS resolution from the client.

# ping mail.satimis.com
# dig satimis.com MX
# dig mail.satimis.com

and so.
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