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Weird SMTP problem - 2.May2002 4:03:00 PM

michaeljcarey

Posts: 41
Joined: 1.May2002
From: Burlington, Canada
Status: offline

We use Exchange 5.5 and ISA on seprate Win2K Servers. I have one external domain (as far as I know) that cannot send SMTP mail to us. When we tried to manually connect:
telnet x.x.x.x 25
ehlo domain.com
etc.

They get the initial reply but as soon as they try to type ehlo they get disconnected. When viewing this problem from their mail server (MDaemon) they get a Winsock error 10053.

They have no other problems and I can connect to them with no problem.

Sorry this was so long but...

Any help??
"[Confused]"

Mike

Post #: 1

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RE: Weird SMTP problem - 3.May2002 4:25:00 PM

tshinder

Posts: 47669
Joined: 10.Jan.2001
From: Texas
Status: online

Hi Mike,

Is SP1 installed on the ISA Server?

Thanks!

Tom

(in reply to michaeljcarey)

Post #: 2

RE: Weird SMTP problem - 3.May2002 4:53:00 PM

michaeljcarey

Posts: 41
Joined: 1.May2002
From: Burlington, Canada
Status: offline

No not yet...

I am planning to it soon though. Do think it will help or is it more "it can't hurt to try"?

Mike

(in reply to michaeljcarey)

Post #: 3

RE: Weird SMTP problem - 3.May2002 8:07:00 PM

Abraham

Posts: 166
Joined: 8.Mar.2002
From: Colombia
Status: offline

Hi, Mike C

Try this:

Firts that all try to install SP1 on ISA, then
if the problem persist,right Click on the Server Publishing Rules, and Click on the Secure Mail Server(Check this configuartion).

If the problem still. Make a new IMC to the domainx, whit an address space only for that domain(only for testing puspose)enable mail logging.

(in reply to michaeljcarey)

Post #: 4

RE: Weird SMTP problem - 7.May2002 1:58:00 PM

michaeljcarey

Posts: 41
Joined: 1.May2002
From: Burlington, Canada
Status: offline

Thanks

I give it a try.

Mike

(in reply to michaeljcarey)

Post #: 5

RE: Weird SMTP problem - 28.Nov.2002 2:51:00 PM

jeremydore

Posts: 12
Joined: 16.Sep.2002
From: UK
Status: offline

I know this is rather a late reply, but we have had similar problems and I thought it might help someone out there. When we added a new Mail Publishing rule, ISA enabled the SMTP filter. This doesn't know about some of the newer SMTP commands and stops domains that use newer SMTP commands from sending mail in.

Solution: Disable the SMTP filter!

(in reply to michaeljcarey)

Post #: 6