Exchange won't send outgoing e-mail

qbarat2
qbarat2 used Ask the Experts™
on
I am running server 2003 with Exchange 2003.  Suddenly the server will no longer send e-mails, they are getting stuck in the queue and I am getting a delivery status delayed message.  The server is not a full mail server, I am using a pop grabber to recieve e-mails from a remote mail server so it is strictly acting as smtp.  Could an incorrect MX record cause this all of a sudden and would it stop e-mails to ALL hosts?  What can cause this?

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Alan HardistyCo-Owner
Top Expert 2011

Commented:
How are you sending your outbound emails?
You can either send via Smart Host or via DNS.
If you are sending via a Smart Host - they could have issues, if via DNS, then you could have DNS issues.
Open up Exchange System Manager, Expand Connectors, Right click your SMTP Connector and choose properties.  On the first screen you will see how you are sending out emails.
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Commented:
Confirm if you can telnet to any external SMTP server.

telnet mail.isp.net 25

(where mail.isp.net is your ISPs outbound SMTP server).
If that fails, then the block is occurring locally.
If that is successful, try a remote SMTP server.

telnet maila.microsoft.com 25

If that fails then your ISP has decided to block port 25. Phone them up and ask why.
Simon.

Author

Commented:
I checked and I am currently sending mail out VIA DNS.  I also tried your test Mestha, and I am able to telnet to microsoft mail server, although I was unable to test the first part because the client is using a T1 and I do not have the ISP's  outbound SMTP server.
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Co-Owner
Top Expert 2011
Commented:
Are all your services running on the server?
Start, Run Services.msc (enter)
Click on the Startup Type column and look down the list for items that are set to Automatic that are not started.  Ignore Performance Logs and Alerts.
If services are not started, right click on the service and click Start.  Make sure that Simple Mail Transfer Protocol (SMTP) is started.
Failing this - have you tried rebooting your server?

Author

Commented:
Hah, sometimes its easy to overlook the simplest solution...a simple reboot solved the problem
Alan HardistyCo-Owner
Top Expert 2011

Commented:
Great news - sorry it was such a low-tech solution!!

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