Email being rejected

A few hours ago, our exchange system began rejecting almost all incoming emails, giving a failure code of "550 Requested action not taken: mailbox unavailable or not local." We can send out, and receive internal email, and receive emails from sbcglobal.net, but nothing else.

I have rebooted the exchange server (we use small business server 2003 with exchange 2003).

Help - what can I do??
MikeDog123Asked:
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Mike,

I reading the info you provided on the SBS Newsgroup, I'd say that LunarPages messed up your DNS Zone file and you need to contact them ASAP to rectify the situation.

Jeff
TechSoEasy
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MikeDog123Author Commented:
I think you're right.  I checked a dns report site, and our mail server is listed as lunarpages' ip address instead of ours.  I've submitted an email trouble ticket to them, but I can't talk to them by phone until the morning.  Meanwhile, no email for us.  All this time I was thinking it was our server...

Mike
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