My exchange server does not send or receive email relay error

Question/Problem:

My mailserver cannot send and receive mail, i am sure everything is set up correctly and people who try to send me mail are getting a relay error email bounced back.

The answer/solution:

if your provider is blocking port 25, these problems will happen. Try using www.rollernet.us for your incoming mail traffic.

In exchange, set your provider's SMTP server as smarthost for your outgoing mail if your provider also blocks outgoing traffic from port 25. To set your provider's smtp server as smarthost, go to the exchange system manager, edit the virtual smtp server settings, go to the delivery tab and click advanced and you will see the field where you can enter the smtp server address as a smarthost.

added by Jos on: 25-04-2007

keywords: smarthost, exchange 2003, relay error, port 25,