Replying to Posts received by email bounce back "Undeliverable".
It appears to be limited to my Account or ISP, as others appear to reply to Posts via email successfully.
This is the mail system at host mail.sgaur.hosted.jivesoftware.com.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to <postmaster>
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
10.120.24.31[10.120.24.31] said: 553
unknown. (in reply to RCPT TO command)
Reporting-MTA: dns; mail.sgaur.hosted.jivesoftware.com
X-Postfix-Sender: rfc822; firstname.lastname@example.org
Arrival-Date: Wed, 9 Nov 2011 10:33:10 -0700 (MST)
Final-Recipient: rfc822; email@example.com
Remote-MTA: dns; 10.120.24.31
Diagnostic-Code: smtp; 553
From: rene lanthier <firstname.lastname@example.org>
Date: November 9, 2011 11:33:06 AM CST
Subject: New Discussion via email link