suggestion need to design an email system.

[Adam Tauno Williams]

> I have a running email system which I made in 2006 based on
> postfix+cyrus+openldap. The authentication is based on openldap.
> I have done some reading through net and find a new mail server dovecot.
> I have to create another email system for multidomain based hosting
> server where both scalability as well as performance should be in prime
> consideration. I need your kind suggestion for this. shall I use dovecot
> or cyrus can fit my requirement ? 

I don't know why anyone would use a server other than Cyrus;  Cyrus'
scalability is very well known, configuration is simple, performance is
awesome, and the depth of features is unique among Open Source servers.

> another important questing ; Is there
> any webinterface which can manage the mail system based on LDAP ?

No idea since I don't understand what "manage the mail system" means.

> There are many with MySql but any application which can work with
> postfix+cyrus+openldap ?

Sure, if you want to do anything with MySQL there are usually hundreds
of poorly maintained solutions.   If scale is an issue I'd stuck with
OpenLDAP, *nothing* is faster than OpenLDAP, and Symas has the
benchmarks to prove it.