Under POP3, blame RFC1725. That version of the POP3 pro*
tocol specification removed the LAST command, and some POP
servers follow it (you can verify this by invoking fetch*
mail -v to the mailserver and watching the response to
LAST early in the query). The fetchmail code tries to
compensate by using POP3's UID feature, storing the iden*
tifiers of messages seen in each session until the next
session, in the .fetchids file. But this doesn't track
messages seen with other clients, or read directly with a
mailer on the host but not deleted afterward. A better
solution would be to switch to IMAP.
Lesezeichen