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Watchguard allowing incoming email to Exchange server

Posted on 2008-10-31
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Last Modified: 2012-05-05
We just installed a WatchGuard Firebox firewall. For incoming, we have SMTP-Proxy and SMTP both on port 25 allowed, but we are not able to receive emails. Email shoud come to Exchange Server 2003 SP1.
A 1-to-1 NAT for the exchange server is in the config.
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Question by:Grizzler
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by:dpk_wal
ID: 22856858
Can you update of you are getting any errors/messages in traffic monitor; please mask two octets of all public IP addresses.

If you configure filteredSMTP instead of SMTP proxy service does the email come in fine.

Please update,

Thank you.
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Expert Comment

by:it-kourt
ID: 22861680
Is the external IP address you have 1:1 NATed to your exchange server dedicated just to the exchange server?  If so you are most likely missing a policy From: Any-External To: your External IP address.  You can use Any protocols or http: https: POP and SMTP if you are using these protocols for your Exchange server.

If you are not dedicating the external IP address just for Exchange I would remove the 1:1 NAT and add a separate policy for SMTP, POP, http and/or https From: Any To: NAT external IP address to internal IP of your Exchange box (for each of the protocols you are using).

Hope this helps.
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Accepted Solution

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Grizzler earned 0 total points
ID: 22890139
This is a non-issue at this point.
WatchGuard will not be a solution provider for us.
Thanks to all who responded.
If the tech support for them was as responsive, they may have not lost us as a customer.
Is there something I need to do to close this trouble ticket?
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