Quoting from Michael Abbott's mail on Tue, Nov 19, 2002 at 07:18:27PM +0000:
I presume that fetchmail is designed with the following three goals in
mind:
1. To deliver mail without losing it;
2. To deliver each item of mail once only;
3. To deliver mail in a timely manner.
Obviously when POP3 is the source of mail and one or more e-mails cannot
be delivered, there is a problem, and the current implementation of
fetchmail "resolves" this by abandoning goals 2&3.
Which version of fetchmail are you using? Upgrade to 6.1.2, if you
haven't done so already.
Send the output of 'fetchmail -v -v'. No goals can be achieved without
this.
Sunil Shetye.