Email trobles, Serious exchange problems.

Okay, Im at a clients running windows 2000 server with exchange 2000 on it. And I cna't get email here, and I cna't figure out why not. Its driving me nuts. I can't even figure out where the emails are dieing. Internally tall the emails are workign fine, but when I send a message from an outside source, it never gets here, and I don't get a NDR from where I sent it. Anyone know a way I can trace a sent email so I can at least know at what point it dies? Or if you have a solution let me know.


Here is some other background infor, last week they changed webhosts and lost emial cuz the new one wasn't forwarding thier mail DNS to htier static IP. Once that was resolved however, email worked fine for 3 days and now its just stopped. The DNS is pointing to the right direction and all, just can't seem to get any emails. Please help!

 

If it was working fine and nobody changed anything, then your still looking at routing problems at the ISP end. From a box outside you lan, run a tracert to your MX url (not the ip address). See where the name resolution is dying.