> You can't. When receiving mail from a POP3 mailbox, the SMTP
> envelope is missing, so you won't be able to determine the
> correct local user. Use something else that preserves the message
> envelope, i.e. UUCP, ETRN, ATRN, ..
Before the server that is collecting the mail died it was able to determine
the localusers when connecting by POP3.
The trouble is the hardisk caught on fire and so the files are not
recoverable.