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ESMTP vs. SMTP

By craig ·
I need to connect my Exchange server to another company's Exchange site to send secure e-mail. I'm getting an error that says "secure channel required" When I telnet to their IP at port 25 I get
220 SMTP/cmap ready - I know it's supposed to answer with
220 server.domain.com ESMTP Server yaddda, yadda, yadda...
We're both on 5.5 sp3. Why does theirs answer differently? Ports 110 (ntlm) and 995 (SSL) are open. and all is configured correctly on both side as far as IMS. What we need to do is toget their server to understand the SMTP extensions. I have 2 sites that work fine but this one just wont answre correctly - It's almost like it's not even an Exchange box answering....
We have both followed all technet articles concerning this so but are at wits end.
You can answer here or e-mail me directly - as I've been working on this for almost a month.
craig@mwbb.com
thanks people -

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ESMTP vs. SMTP

by mdavis In reply to ESMTP vs. SMTP

You might try a couple of things. I'm only guessing, so I hope this works. Open Exchange Administrator and go to the properties of your IMS. On the connections tab, under the section "Accept Connections", make sure both sides have the proper settings. I assume you're using either authentication, encryption, or both. Then go to the security tab. Either add an entry for the opposite IP domain, or modify the default domain. Make sure you change it from the default of "No authentication or encryption" to whatever security setting you need. My guess is you already tried this but just in case...

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ESMTP vs. SMTP

by craig In reply to ESMTP vs. SMTP

Actually the problem was that they had the wrong ports opened. Newbie on the other end to his Cisco Pix
Thanks anyway

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ESMTP vs. SMTP

by craig In reply to ESMTP vs. SMTP

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