Theis not clear enough? You want to integrate Modoboa with softwares that are not listed on this site? You need answers about a specific question you've got?
Don't panic, we are sure you will find what you are looking for on this page.
By the way, if you are more a writer than a developer, you can help Modoboa with documentation or tutorials. If you want to contribute this way, please.
All you need to start using Modoboa is available on this documentation.
If the documentation doesn't answer your questions, the mailing list is the right place to go. You can ask everything you need as long as it concerns Modoboa.
If you need a quicker answer or want a live discussion with the team, go to irc.freenode.net and join us on #modoboa.