i have win server 2003,exchange2003 .isa 2004
the problem that i faced it : when send e-mail from all pc in the company the unknow e-mail received by the same user who send contain:
Your message did not reach some or all of the intended recipients.
Subject: zzzzzzzzzzz
Sent: 9/16/2010 9:16 AM
The following recipient(s) could not be reached:
volcano36124@hotmail.com on 9/16/2010 9:16 AM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<mail.thyssenkruppelevator.com.sa #5.5.0 smtp;550 OU-001 Unfortunately, messages from 77.240.95.209 weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to https://mail.live.com/mail/troubleshooting.aspx#errors.>
i use outlook 2003
when i show event viewer on my server i found this SMTP error id 7004 and many kinds of SMTP error
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