Recipient address rejected: Service temporarily unavailable

[pct3ch]

One of users was trying to send and email and got the following delayed delivery message. He gets these from time to time. I'm copying the message and the smtp transaction log. From the looks of the log the problem was on there side but I want to verify this. Thanks in advance.


Final-Recipient: rfc822;bob@othercompany.com
Action: delayed
Status: 4.0.0
Diagnostic-Code: smtp;450 <bob@othercompany.com>: Recipient address rejected: Service temporarily unavailable
Will-Retry-Until: Wed, 5 Dec 2007 11:38:42 -0800
X-Display-Name: bob@othercompany.com

2007-12-03 19:38:42 123.39.2.33 OutboundConnectionResponse SMTPSVC1 EXSERV00 - - - 220+mailwash.pair.com+ESMTP+Postfix 0 37 0 172 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionCommand SMTPSVC1 EXSERV00 - EHLO - mail.mycompany.com 0 4 0 172 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionResponse SMTPSVC1 EXSERV00 - - - 250-mailwash.pair.com 0 23 0 250 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionCommand SMTPSVC1 EXSERV00 - MAIL - FROM:<bill@mycompany.com>+SIZE=9754 0 4 0 266 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionResponse SMTPSVC1 EXSERV00 - - - 250+Ok 0 6 0 344 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionCommand SMTPSVC1 EXSERV00 - RCPT - TO:<bob@othercompany.com> 0 4 0 344 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionResponse SMTPSVC1 EXSERV00 - - - 450+<bob@othercompany.com>:+Recipient+address+rejected:+Service+temporarily+unavailable 0 82 0 438 SMTP
2007-12-03 19:38:42 123.39.2.33 OutboundConnectionCommand SMTPSVC1 EXSERV00 - RSET - - 0 4 0 438 SMTP