Mail Mirror question


I’ve been trying to setup a mail mirror for a domain I’m getting ready to transfer over, and I’ve been having some problems.

Let’s call the the domain I’m planning on transferring over I set up a mail mirror for this domain at, where already has nameservers pointing to the dreamhost server. I setup the mirror 24 hours ago.

I have an e-mail address setup for on the dreamhost server. I can log into the mirrored account via IMAP, but not by webmail. Also, e-mail sent to bounces back with the following message:

Final-Recipient: rfc822;
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp; Permanent Failure: Other undefined Status
Last-Attempt-Date: Thu, 23 Mar 2006 15:40:48 -0000

Maybe I’m going about this the wrong way. Aside from a mail mirror, is there a way to login to an e-mail account on the dreamhhost server when the nameservers for the domain are still pointing to a different server?