Pop3 settings

This allows you to setup email-based subscriptions. When someone sends an email to this account it will start a subscription process for them. Despite the name it also supports imap if you want to use that. This area uses the imap() routines in php so you'll need those compiled. There are various related options. The spam header is particularly nice if the address has spamassassin running. The system will ignore these messages and not subscribe them.

Note: It's usually good practice to use an un-used email address for this. Unless you have a specific reason not to, it's best to delete the messages after they're checked. Otherwise these messages will need to be checked every time it connects, slowing your system down and perhaps re-adding users that have unsubscribed. Unless you have another system checking and clearing this mailbox, make sure delete is on.