Hello,
I have installed iRedMail with success - although, with more than one hickup to solve, in a jail on FreeBSD 10.0 with an own environment (problems with the MySQL grants, which I was able to solve - as well as some changes to the installer needed to integrate iRedMail in a poudriere/pkgng environment).
I'm evaluating iRedMail for productive use on a few servers, and so far, I like it, and as an experienced admin I am evaluating the deatils of your implementation.
For some domains I would need a functionality to work: The ability to deliver mail coming from dedicated catchall-domains into an IMAP folder of an existing account of another domain: E.G. <anymail>@subd1.domain.tld should go to user@domain.tld -> folder "subd1".Is this scenario possible, and if yes, what would need to be patched to achieve it? Would the Pro admin interface be easilly patched for this? If this is possible, I'm a new customer! 
Greetings,
Lorenzo
==== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: FreeBSD 10.0
- Related log if you're reporting an issue:
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