RE: SMTP Relay Server or Smart Host - Not working

I figured it out, it was my antivirus software blocking port 25...

"sjs" wrote:

I've got a small subnet (192.168.0.x) made up of two computers and a
production subnet (10.1.1.x) where all users and my Exchange server reside.
"Bridging" the two networks sits a server that it dual-homed to both networks
(two nics: 192.168.0.1 and 10.1.1.100). Sitting on this server is SQL and
IIS. The 192.168.0.x computers run an application which upon an event sends
an SMTP email to a production network user who use Exchange as their email
server.

My challenge is to get the SMTP email fm the 192.168.0.x computer thru the
dual-homed server to the Exchange server. To do this I've configured the
dual-homed server's IIS to run SMTP (see KB293800) with hopes it will rcv the
192.168.0.x SMTP email and relay it to the Exchange server. However I am not
getting email to an Exchange user. I've tried many of the IIS/SMTP
configuration settings with no luck.

To troubleshoot I installed the application on the IIS server and
successfully sent an SMTP email to the Exchange server/end user. This tells
me the problem in either the application isn't sending the SMTP email (I
don't think this is it) or the IIS/SMTP isn't configured properly. I've
stopped/started the services, no luck.

One thing that puzzles me is how I can tell if the IIS server rcv'd the SMTP
email. When I check the C:/INetpub/mailroot/badmail, drop, queue, etc
directories I don't see anything hitting it. Is that a clue?

tks in advance,
steve
.

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