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Old 28th September 2009, 09:07
treeman treeman is offline
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I spent the whole day on this and got a tcpdump. Not sure what to make out of it, could it be the router?

erver postfix/smtpd[19590]: connect from igwx10.cba.com.au[140.168.71.11]
server postfix/smtpd[19590]: B98BC4FC807C: client=igwx10.cba.com.au[140.168.71.11]
server postfix/smtpd[19590]: lost connection after DATA from igwx10.cba.com.au[140.168.71.11]
server postfix/smtpd[19590]: disconnect from igwx10.cba.com.au[140.168.71.11]

Here is a bit more from tcpdump

192.168.1.1 140.168.71.11 SMTP Response: 220 privacy ESMTP Postfix
140.168.71.11 192.168.1.1 TCP 34401 > smtp [ACK] Seq=1 Ack=38 Win=5840 Len=0 TSV=3555347476 TSER=1807209853
140.168.71.11 192.168.1.1 SMTP Command: EHLO cba.com.au
192.168.1.1 140.168.71.11 TCP smtp > 34401 [ACK] Seq=38 Ack=18 Win=5888 Len=0 TSV=1807210217 TSER=3555347476
192.168.1.1 140.168.71.11 SMTP Response: 250-privacy
140.168.71.11 192.168.1.1 SMTP Command: MAIL FROM: <privacy@cba.com.au> SIZE=576126
192.168.1.1 193.17.41.50 SMTP Response: 250 2.1.0 Ok
140.168.71.11 192.168.1.1 TCP [TCP Previous segment lost] 34401 > smtp [ACK] Seq=3000 Ack=313 Win=6432 Len=0 TSV=3555347651 TSER=1807211599 SLE=248 SRE=313
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