Fetchmail upon retrieval is returning the following message to the sender:
: internal software error. Command output:
Unable to create tmp file: Permission denied Unable to convert input to
CRLF format Failed to resolve recipient x
It's possible that the user under who the external retrieval service/fetchmail is running doesn't have permission to create temp files.
I had similar issue with the mysql service for zarafa. I had to change user in my.cnf from mysql to root.
Please help.