Rick McMillin writes:
> We're experiencing a minor problem with setting a mail client
> to leave messages on the server. It's not even really a problem,
> just something annoying.
>
> Anyway, when a mail client is set to leave messages on the server,
> every once in a while, it will re-receive all of the messages causing
> there to be duplicates. When I first saw this problem myself, I was
> using Outlook Express 5.0 and thought that it was probably some
> bug in the software. However, I'm now hearing from others that
> they are having the same problem using other clients like Eudora.
>
> I've checked when this has happened and everything appears to
> be fine in the cur directory.
You are assuming that only Outlook Express is a pile of bugs. That may not
be true. If for some reason the POP3 server screws up in a way that the
POP3 client is not aware of, the POP3 client might believe that the POP3
mailbox is empty, and delete its cache of UIDLs of downloaded messages. On
a subsequent access, the POP3 client will see all these messages that
weren't there before, and will think that they're new.
--
Sam