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Test External SMTP listener - 12.Dec.2004 9:31:00 PM

pmol

Posts: 28
Joined: 3.Oct.2004
Status: offline

Hi,

I have configured ISA with a rule to "publish a mailserver".
Since I am not able to test the whole setup over the internet I would like to make sure incoming email will be accepted by the ISA server.

I have tried to telnet to port 25 of the external network adapter on the ISA server, but it didn't respond.
Should this work, and if not how can I test it correctly ?

thanks

Post #: 1

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RE: Test External SMTP listener - 13.Dec.2004 1:16:00 PM

syddieki

Posts: 16
Joined: 13.Dec.2004
From: UAE
Status: offline

The ISA will block the telnet traffic by default ... you will hav to create a new access rule to allow Telnet Traffic to pass thru external to internal.

Telnet to Port 25 to Test SMTP Communication:
http://support.microsoft.com/default.aspx?scid=kb;en-us;153119

(in reply to pmol)

Post #: 2

RE: Test External SMTP listener - 13.Dec.2004 3:21:00 PM

pmol

Posts: 28
Joined: 3.Oct.2004
Status: offline

Is this also true when I have configured to publish a mailserver through the ISA server ?
I have done this with the default publishing rule for mailservers and set it up for SMTP.

I thought the external interface should accept telnet port 25 traffic, is this correct ?

(in reply to pmol)

Post #: 3