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Undeliverable Emails

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Undeliverable Emails - 28.Sep.2004 2:38:00 AM

PC-Mike

Posts: 5
Joined: 28.Sep.2004
From: Detroit, MI
Status: offline

I have a remote location connected via a VPN router on a different subnet. The users are unable to send email through our Exchange Server. Here is the error message that they are getting. Exchange server is 2003 and clients are all XP with Outlook 2003.

"ABC.com #5.5.0 smtp;550 You must check your mail from this IP or SMTP Auth before sending to User@XYZ.com"

I have checked the smtp virtual server properties to ensure that the subnet is permitted to us it.
Any other areas I should look?

Thanks!