Up until yesterday my Exchange server was working normally, I made no significant changes other than applying a couple of updates, and today none of my users are able to send email using the SMTP connector.
All I get are email stuck in the queue under the connector with retry as the state and the error:
"The remote server did not respond to a connection attempt."
I have tried both setting the SMTP connector to use DNS and to forward all through a smart host and neither work, I created a new connector with my ISP's smtp address and that didn't work. I also tried to re-run the internet connection wizard but it failed miserably. And, I'm receiving a bunch of Event ID 7004 errors in my event log that say an address doesn't exist when I know that it does.
I'm lost at this point, I'm a bumbling Windows admin at best so I really appreciate any help. Thanks in advance.