No midway… Choose your own smtp and pop servers at Mail Protection Wizard. The application will save this information and change, automatically into Outlook Express and Incredimail the accounts properties to 127.0.0.1
If you choose the option ‘set up the protection manually’ you could set what accounts will be protected and if you want to scan the Inbound and/or Outbound Mail.
There is no trouble, make tests… All changes are easy reversible, you won’t harm your system.
Good luck.