X-SPAM SMTP connection timed out

[vikas]

X-SPAM SMTP gives time out session from sender test@abc.wxy.xz What is to be done now?? HELPPPP here are the excerpts from the smtp.log

12/20/07 18:59:06 [ 0x00003374 ] - SMTPIN: Entering into thread no: 6 (IP: xxx.xxx.xxx.xxx)
12/20/07 18:59:07 [ 0x00003374 ] - SMTPIN: #EHLO mail.xyz.xyz
12/20/07 18:59:08 [ 0x00003374 ] - SMTPIN: #MAIL FROM:<test@abc.wxy.xz>
12/20/07 18:59:09 [ 0x00003374 ] - SMTPIN: #RCPT TO:<abc@abc.com>
12/20/07 19:04:09 [ 0x00003374 ] - SMTPIN: Connection timed out

[Divesh]

X-SPAM SMTP gives time out session from sender test@abc.wxy.xz What is to be done now?? HELPPPP here are the excerpts from the smtp.log

12/20/07 18:59:06 [ 0x00003374 ] - SMTPIN: Entering into thread no: 6 (IP: xxx.xxx.xxx.xxx)
12/20/07 18:59:07 [ 0x00003374 ] - SMTPIN: #EHLO mail.xyz.xyz
12/20/07 18:59:08 [ 0x00003374 ] - SMTPIN: #MAIL FROM:<test@abc.wxy.xz>
12/20/07 18:59:09 [ 0x00003374 ] - SMTPIN: #RCPT TO:<abc@abc.com>
12/20/07 19:04:09 [ 0x00003374 ] - SMTPIN: Connection timed out

Connection timed out could be if there is no activity between the sending and the receiving SMTP i.e. if no data is received by the by the HOST SMTP. The receiving SMTP will shutdown the connection if it does not receive any commands / data from the sender SMTP between a certain period of time or if it does not receive the QUIT command from the sender SMTP.
As per the excerpts from the SMTP.log, connection is shut down after 5 mins of the RCPT command as there is no data command received.
if the time out / connection shutdown by the receiving smtp for incomming connection is increase could help to analyse if bad connection is the reason.