I am sure you are not the first to run into this fetchmail configuration
issue. Before you start hacking, try turning back to the fetchmail docs
and/or doing some googling. Maybe, you can turn on duplicate checking
in the global configuration, but turn it back off for specific sites that
you fetch your mail from.
Howard Spindel wrote:
> If the message arrives with two different sequence numbers then it is
> handled properly. If it arrives as two messages, with two different
> X-Original-To: headers but the same sequence number then fetchmail
> discards the second one assuming it's a duplicate. Unfortunately, I
> can't find a fetchmail switch to disable that behavior. I may go and
> try to hack the code.