Help! Can send out, but can't receive.

[wfbtr]

I have Exchange 2k3 running on Server 2003. I can't figure out why I can send out but can't receive. seems to be all users. i rebooted the Exchange box and still can't receive. I'm not really an Exchange guru, so I'm wondering what I should check first.
thanks.

 

[wfbtr]

ok, here's what i've done. i did "telnet mail.xxx.com 25" and got "could not open connection to the host, on port 25: connect failed.
i also did a dns test from dnsreports.com and it says "the parent servers say that the domain xxx.com does not exist."
also did an nslookup and got a bunch of time-outs non-existent can't find junk.

so- i have a DNS problem. I'm thinking my ISP's records are the problem.

 

[wfbtr]

aha!
it might help if the domain name didn't expire last night.
and of course there's somebody i've never heard of listed as the admin contact.