Unable to process From lines (envelopes), change recognition modes or check for corrupted mail drop
08/06/2005
Non-Techie Explanation
Your ISP has a small problem with their mailserver, this is usually simple to fix, perhaps send them the explanation below...
Techie Explanation
If your mail client fails to get your mail with this message, chances are it's most likely caused by a corrupt username.pop file that was left laying around by a pop process that died.
Solution
Find the .username.pop file (usually somewhere like /var/spool/pop) and move/rename.