Thanks, Robert!!
Just to be sure (and given the potential danger of unintended
erasure):
I have an account "ramon" in the Linux server, which I access from
several desktop PCs, at office and home. I will be satisfied to upload
the messages from one PC (which has most of the stuff).
As soon as I noticed the unintended deletion of PC, I had no resort
but stopping the IMAP daemon.
You said that I should create a different accout, let's call it
"mailboxrecover" (or something). Both the "ramon" account and the
"mailboxrecover" account exist in the client PC and I export the old
folders to the "Local Folders".
The problem that I see is that at this point I have to restart the
IMAP deamon, and if I am not mistaken, it will perform some massive
deletions. Probably I should only click on the "mailboxrecover"
account??
-Ramon