Re: Exchange 2003 SMTP thru firewall

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Chad Mahoney (spamme_at_mah0ney.com)
Date: 01/10/05 

Date: Mon, 10 Jan 2005 17:05:09 -0500

Fitz Crittle [MSFT] wrote:
> By default Exchange is listening on Port 25 and external mail serves sending
> email via SMTP assume your network can receive connections via Port 25. Is
> Port 25 open on the Pix Firewall? Also, there are some issues with Exchange
> Servers behind Pix firewalls.
>
> 320027 Cannot send or receive e-mail messages behind a Cisco PIX firewall
> http://support.microsoft.com/?id=320027
>
> Thanks,
> Fitz Crittle
>
> This posting is provided "AS IS" with no warranties, and confers no rights.
> Please do not send email to this address, post a reply to this newsgroup
>
>
>
> "Bryan Colby" <BryanColby@discussions.microsoft.com> wrote in message
> news:2F091D59-2502-4F30-B4D5-23AA34F2FA72@microsoft.com...
>
>>I have configured Echange 2003. I can tell net to the smtp serveice form
>>inside my network (ie telnet 192.168.60.5 smtp) but i cannot telnet from
>>an
>>internet address (ie 216.190.223.156). The firewall (pix) is set up
>>correct,
>>as I can access the web and if I start the service on port 2525 i can
>>tellnet
>>from the outside just fine to it. Any ideas on this?
>
>
>

Goto to the enable prompt of the pix and remove the fixup for port 25
(SMTP) as the PIX does not support the exchange protocols.

Also turn the logging on the pix to debug and dump the putput to a
syslog server so you can see the traffic go through the firewall.

hth,

Chad

Relevant Pages

  • Re: Exchange 2003 SMTP thru firewall
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