Hi Florian,
New info, the server in this case is Sendmail, so not Exchange specific.
The following capture is from a mail sent thru SWA.
2007-02-01 14:58:08.993497 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 220 mx.recipient.com SendMAil 2.5.8.nhaca Pestana's Scanning Server. Unauthorize
d usage can and will be prosecuted to the full extent of the law. Thu, 1 Feb 2007 15:02:37 +0000
2007-02-01 14:58:08.993573
www.xxx.yyy.zzz-> zzz.yyy.xxx.www SMTP Command: EHLO mx.domain.pt
2007-02-01 14:58:08.996871 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250-mx.recipient.com Hello [www.xxx.yyy.zzz]
2007-02-01 14:58:08.996981
www.xxx.yyy.zzz-> zzz.yyy.xxx.www SMTP Command: MAIL FROM:<removed.username@domain.pt> SIZE=1655 ENVID=4044055.1170345062782.JavaMail.root@sc
alix.domain.pt RET=FULL
2007-02-01 14:58:09.001866 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250 2.1.0
removed.username@domain.pt....Sender OK
2007-02-01 14:58:09.044216 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250 2.1.5
removed.recipient@recipient.com
2007-02-01 14:58:09.101431 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250 2.6.0 <4044055.1170345062782.JavaMail.root@scalix.domain.pt> Queued mail for del
ivery
2007-02-01 14:58:09.101446 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 221 2.0.0 mx.recipient.com Service closing transmission channel
The mail got delivered.
Then again with IMAP/SMTP
2007-02-01 15:11:03.884095 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 220 mx.recipient.com SendMAil 2.5.8.nhaca Pestana's Scanning Server. Unauthorized
usage can and will be prosecuted to the full extent of the law. Thu, 1 Feb 2007 15:15:32 +0000
2007-02-01 15:11:03.884189
www.xxx.yyy.zzz -> zzz.yyy.xxx.www SMTP Command: EHLO mx.domain.pt
2007-02-01 15:11:03.888466 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250-mx.recipient.com Hello [www.xxx.yyy.zzz]
2007-02-01 15:11:03.888712
www.xxx.yyy.zzz -> zzz.yyy.xxx.www SMTP Command: MAIL FROM:<removed.username@domain.pt> SIZE=2176 ENVID=!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAA
AAAAAAAgistjL7ipUmtBa6DU9fTRcKAAAAQAAAA ... @domain.pt RET=FULL
2007-02-01 15:11:03.977914 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 501 5.5.4 Invalid arguments
2007-02-01 15:11:04.056991 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 503 5.5.2 Need Mail From: first
2007-02-01 15:11:04.057348
www.xxx.yyy.zzz -> zzz.yyy.xxx.www SMTP Command: RSET
2007-02-01 15:11:04.159430 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 250 2.0.0 Resetting
2007-02-01 15:11:04.159812 zzz.yyy.xxx.www ->
www.xxx.yyy.zzz SMTP Response: 221 2.0.0 mx.recipient.com Service closing transmission channel
Error.
BRGDS
Bruno