[imp] IMAP Choices

[john at stlbsd.org]

A client is requesting a webmail system, so I am researching
options and have a couple questions.

The new system will be built on FreeBSD and will have postfix, 
apache, php, & mysql.

I like the concepts behind the horde components and would like
to work with that.

For IMAP we are considering courier or cyrus. Are these compatible
with imp? I am assuming maildir format, correct?

Any words of wisdom?

--
John Brooks
john at stlbsd.org