E2k3 messages stack in the queue

AIME · Joined: 05 Aug 2007 Posts: 1

Hi,

1 - When I am trying to send mail to a certain domain (i.e.:hotmail.com or
yahoo.com) the
messages stay in the queue, I see the email still trying to send but it
never go.

If I look in the properties I see this error: "The connection was dropped by
the remote host."

2- Another problem is : The mail can reach this domain : telecel.co.za
(exchange 5.5) only during
the night. When i try to send it during the day i get this messages :
Message delivery to the host '196.38.57.82' failed while delivering to the
remote domain 'telecel.co.za' for the following reason: The semaphore
timeout period has expired.

event id 4006

I am running one Exchange server 2003 on windows 2003. For the
rest of the domain it's sending without any problem.

Help

Thanks

AIME

Archived from group: microsoft>public>exchange2000>documentation

Patrick Genova [MSFT] · Joined: 05 Aug 2007 Posts: 9

Hi Aime,

For the both of the issues I would suggest doing an NSLookup from the
appropriate Exchange Server and returning the MX records of the domains we
are having an issue sending to. Next do a Telnet session from the Servers to
those domains and see if you can connect to those servers and actually drop
off mail to each one. If this fails the problem is on their side....

203204 XFOR: How to Obtain Internet Mail Exchanger Records with the
http://support.microsoft.com/?id=203204

153119 XFOR: Telnet to Port 25 to Test SMTP Communication
http://support.microsoft.com/?id=153119

--
Patrick Genova
Pgenova@online.microsoft.com
Please do not send mail directly to this alias. This alias is for Newsgroup
purposes only.
This posting is provided "AS IS" with no warranties, and confers no rights.

"AIME" wrote in message
news:%238lw6irLEHA.3012@tk2msftngp13.phx.gbl...
> Hi,
>
> 1 - When I am trying to send mail to a certain domain (i.e.:hotmail.com
> or
> yahoo.com) the
> messages stay in the queue, I see the email still trying to send but it
> never go.
>
> If I look in the properties I see this error: "The connection was dropped
> by
> the remote host."
>
> 2- Another problem is : The mail can reach this domain : telecel.co.za
> (exchange 5.5) only during
> the night. When i try to send it during the day i get this messages :
> Message delivery to the host '196.38.57.82' failed while delivering to the
> remote domain 'telecel.co.za' for the following reason: The semaphore
> timeout period has expired.
>
> event id 4006
>
> I am running one Exchange server 2003 on windows 2003. For the
> rest of the domain it's sending without any problem.
>
> Help
>
> Thanks
>
> AIME
>
>
>
>

tb9625 · Joined: 05 Aug 2007 Posts: 1

I have a similar issue but it occurs routing to internal exchange Servers via smtp connectors.

If you use a smart host on an SMTP connector, why would it attempt to query an MX record? Is there another explanation for the semaphore timeout issue??

Chi · Joined: 06 Aug 2007 Posts: 1

I am also having a similar issue. Here is my e-mail setup

Exchange 2k3 (latest sp and all hotfixes) -> IIS SMTP w/ ASSP ->Internet

Exchange is on my internal network, the ASSP server is in the DMZ. Messages get from Exchange to ASSP just fine.

Most e-mails are getting through without a problem. There are a few domains that are dropping our connection, but that is because of reverse-dns lookups on their end (I forgot to get that setup...doh). However, two domains can send e-mail to us, but any e-mails we send to them get stuck in the IIS SMTPsvc with the message semaphore timeout period has expired.

I can connect to mail servers at both domains and drop e-mails manually. This is really boggling my mind, it doesn't help that I am a first time e-mail admin to boot.

Any help is greatly appreciated.

"tb9625" wrote:

> I have a similar issue but it occurs routing to internal exchange Servers via smtp connectors.
>
> If you use a smart host on an SMTP connector, why would it attempt to query an MX record? Is there another explanation for the semaphore timeout issue??
>

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