Spam Hound automatically detects all your incoming and outgoing mail accounts.

You should not need to manually create any accounts in Spam Hound.
These are automatically created and updated by Spam Hound.

Spam Hound simply intercepts your email communications much like Norton Anti-virus or similar programs do.
There is no need to set up accounts, all mail is simply processed in the background.

The POP Accounts are the accounts used to retrieve mail.
Sometimes these are referred to as "mail boxes".
Spam Hound allows you to add any number of POP accounts.

Process using Spam Hound.

If you uncheck this option then Spam Hound will not process any email from this account.