VPOP3 Spamfilter False Positives
As with any spam filter solution, the VPOP3 spam filter can, and probably will, generate false positives. These are messages which VPOP3's spam filter thinks are spam, but which actually aren't.
On the mail we receive at PSCS, the false positive rate is around 2 or 3 in every 5000 detected spam messages. That's about a 0.04% - 0.06% rate. However, different users may have different false positive detection rates. For instance:
* you may receive mail which looks like some types of spam me...
If you get duplicate messages, then there are several common reasons for this:
**Multiple POP3 mailboxes on the ISP**
If your ISP gives you one POP3 mailbox for each VPOP3 user, then you have to tell VPOP3 which user each mailbox is associated with. If you don't do this, then when a message is sent to two VPOP3 users, each user will receive two copies of that message.
To link each ISP mailbox with a VPOP3 user, go to the VPOP3 Mail Connectors → Mail Collectors page. Then, for each Mail Col...