I forgot to mention that I copied over a few key configuration files from the old drive to the new server. Files like sendmail.mc, imap.conf, and so on. I'm getting a message from Thunderbird: You have received an invalid certificate. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number. -------- Original Message -------- Well I was a bonehead this weekend and trashed my server. I just use it for personal e-mail and a tiny web site for me and my wife. I cooked a CPU upgrade (mmmmm, hot chips!) and corrupted the hard drive enough so that the system won't boot into runlevel 5, and it won't run for long in runlevel 3. But, I've moved the drive to an enclosure, and built a new FC4 server, and most things are working. Cyrus seems to be working as an IMAP4 server. SMTP sends mail out. But, I can't seem to get a list of mail folders or create new ones correctly. I've run reconstruct (the Cyrus db checker) with no help. Thunderbird sends messages, but hangs at copying message to Sent folder. Ideas for next steps are greatly appreciated. Thanks, Chris Schumann