I have an emailserver with a simple gui that currently supports pop3 and smtp. The source is C++ and I need it extended with imap4 and some additional secutiry improvements. Imap4 also needs gui implementation for easylily configuring all possible settings.
Security wise, I need better checks that the server is not configured as an open relay and the following stuff...
Bounce loop protection (delete after x bounces), set maximimum failed logins before time block, anti hammering protection.
Additionaly I need to allow setting up pop3 retreivals.
Everything must be possbile to set up via the mini gui.. but also via command line options (Already supported).
Regular communication is a must! Preferably via MSN and email.