Hi,

I have run in to a problem. Just yesterday because of some delivery failures regarding RDNS I have decided to run the mail via my ISP. So This morning I was confronted with the following errors.

Code:
Sep 17 15:16:34 laarakkers-ms01 postfix/smtpd[4913]: connect from localhost[127.0.0.1]
Sep 17 15:17:32 laarakkers-ms01 postfix/smtpd[4913]: 6A165CA60B8: client=localhost[127.0.0.1]
Sep 17 15:17:36 laarakkers-ms01 postfix/cleanup[5730]: 6A165CA60B8: message-id=<20100917131732.6A165CA60B8@laarakkers-ms01.arie-laarakkers.nl>
Sep 17 15:17:36 laarakkers-ms01 postfix/qmgr[14256]: 6A165CA60B8: from=<receptie@arie-laarakkers.nl>, size=429, nrcpt=1 (queue active)
Sep 17 15:17:37 laarakkers-ms01 zmmailboxdmgr[6193]: status requested
Sep 17 15:17:37 laarakkers-ms01 zmmailboxdmgr[6193]: status OK
Sep 17 15:17:37 laarakkers-ms01 zmmailboxdmgr[6270]: status requested
Sep 17 15:17:37 laarakkers-ms01 zmmailboxdmgr[6270]: status OK
Sep 17 15:17:44 laarakkers-ms01 postfix/smtpd[6305]: connect from localhost[127.0.0.1]
Sep 17 15:17:44 laarakkers-ms01 postfix/smtpd[6305]: 3EAF8CA6253: client=localhost[127.0.0.1]
Sep 17 15:17:44 laarakkers-ms01 postfix/cleanup[5730]: 3EAF8CA6253: message-id=<20100917131732.6A165CA60B8@laarakkers-ms01.arie-laarakkers.nl>
Sep 17 15:17:44 laarakkers-ms01 postfix/smtpd[6305]: disconnect from localhost[127.0.0.1]
Sep 17 15:17:44 laarakkers-ms01 postfix/qmgr[14256]: 3EAF8CA6253: from=<receptie@arie-laarakkers.nl>, size=950, nrcpt=1 (queue active)
Sep 17 15:17:44 laarakkers-ms01 postfix/smtp[6099]: 6A165CA60B8: to=<jeroen_van_de_lockand@hotmail.com>, relay=127.0.0.1[127.0.0.1]:10024, delay=34, delays=25/0/0/8.2, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=14456-09, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 3EAF8CA6253)
Sep 17 15:17:44 laarakkers-ms01 postfix/qmgr[14256]: 6A165CA60B8: removed
Sep 17 15:17:44 laarakkers-ms01 postfix/smtp[6306]: 3EAF8CA6253: to=<jeroen_van_de_lockand@hotmail.com>, relay=194.109.6.51[194.109.6.51]:25, delay=0.13, delays=0.02/0/0.09/0.03, dsn=5.1.1, status=bounced (host 194.109.6.51[194.109.6.51] said: 550 5.1.1 <receptie@arie-laarakkers.nl>... No such user (in reply to MAIL FROM command))
Sep 17 15:17:44 laarakkers-ms01 postfix/cleanup[5730]: 66783CA6258: message-id=<20100917131744.66783CA6258@laarakkers-ms01.arie-laarakkers.nl>
Sep 17 15:17:44 laarakkers-ms01 postfix/bounce[6307]: 3EAF8CA6253: sender non-delivery notification: 66783CA6258
Sep 17 15:17:44 laarakkers-ms01 postfix/qmgr[14256]: 66783CA6258: from=<>, size=3217, nrcpt=2 (queue active)
Sep 17 15:17:44 laarakkers-ms01 postfix/qmgr[14256]: 3EAF8CA6253: removed
Sep 17 15:17:44 laarakkers-ms01 postfix/lmtp[6308]: 66783CA6258: to=<info@arie-laarakkers.nl>, orig_to=<receptie@arie-laarakkers.nl>, relay=laarakkers-ms01[192.168.178.2]:7025, delay=0.15, delays=0.02/0/0/0.13, dsn=2.1.5, status=sent (250 2.1.5 Delivery OK)
Sep 17 15:17:44 laarakkers-ms01 postfix/lmtp[6308]: 66783CA6258: to=<receptie@arie-laarakkers.nl>, relay=laarakkers-ms01[192.168.178.2]:7025, delay=0.15, delays=0.02/0/0/0.13, dsn=2.1.5, status=sent (250 2.1.5 Delivery OK)
Sep 17 15:17:44 laarakkers-ms01 postfix/qmgr[14256]: 66783CA6258: removed
Code:
Release 6.0.8_GA_2661.UBUNTU8_64 UBUNTU8_64 FOSS edition.
Mail from all accounts with exception from one account info@... does'nt work and I get the No such user error.