Re: EHLO EHLO EHLO, what's going on here then ?

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Inbound email from certain domains get stuck in the Exchange categorizer just
before delivery to the mailbox. Several KB articles I have seen mention a
lack of proper information in the email header resulting in non-delivery. I
also have the same problem Andy does. I found article KB186142 which talks
about adding a registry value to tell EHLO/HELO to send an FQDN. The FQDN we
are using in SMTP Virtual Server/Delivery/Advanced tab is already accepted by
the remote server to connect using telnet/25, but it does not seem to be
sending it in the SMTP virtual server.

Am I on the right page? Would this fix implemented in Exchange 2000/Windows
2000 SMTP Service send that hostname?



"DmC" wrote:

Thanks for that Andy.

I had already set the domain in there, but I've added the mail. prefix which
probably should have been there to start with (abc.com would have resolved
against our web server, mail.abc.com will resolve against our mail server).





"Andy David - MVP" <adavid@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:5odku19v3rqtm0rkhutrnhtg4mtdn42t85@xxxxxxxxxx
On Wed, 8 Feb 2006 18:21:20 -0000, "DmC" <d_m_compton [at] yahoo.com>
wrote:

Hi,

Can someone please tell me how to control what FQDN exchange uses when
negotiating a connection with a remote SMTP server ?

I'm getting a error on some servers reporting the client IP doesn't match
the domain.

If I telnet to their mail server and manually enter "EHLO abc.com" then
"MAIL FROM : dcompton@xxxxxxx" it'll accept it.

I've concluded that our Exchange 2003 server isn't putting the correct
FQDN
after the EHLO command.

I'm sure it's really simple to set up, but I can't seem to find any
parameter or setting that defines what it reports.
It's probably sticking something in like "EHLO server.domain.local" ?

Any ideas ?

Cheers,

Dave.



SMTP Virtual Server/Delivery/Advanced tab.
Enter the FQDN there.



.

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