Smartermail Free Alternative?

[Webyhost!]

Smartermail Free for Plesk
I have been running it and I love it, but I need some added features that are free.

Does not have
Imap or SSL, which is a must now for all Iphone users.

Can anyone recommend an alternative that has IMAP, SSL and is free?

I do own the paid versions for other servers, but this is for the lower spectrum of hosting.


Thanks,

Jorge