I cannot figure out why the mail is not flowing out. This is SBS 2003 SP2 with Exchange SP2. They're hosting their own mail routing mail out using DNS, no smarthost forwarding in place. Suddenly today they noticed no one was receiving emails they sent. I've checked all the obvious places, event logs, Exchange queues, I can ping the ISP's DNS servers (but only after rebooting the server, which could be a clue),
A fellow tech pointed out that an SMTP queue is missing. He said he tried recreating manually and automatically but it's still missing even after rebooting again. So now I'm wondering:
1) How many queues should exist with no mail waiting to be delivered, or with Exchange "at rest" regarding outbound mail?
2) Does anyone have a suggestion how to get the SMTP queue recreated if it needs to be recreated?
Thanks for any helpful input.