[CentOS] Re: compiling rpms

>>
> may i ask what you use mysql for with postfix?
> 

valid user addresses lookup, routing lookup, domains lookup or anything 
postfix looks up via a table. mysql support allow for tables stored in 
mysql databases, so anything possible via a table lookup goes.

user, domain, any check_xxx_access rule (xxx = 
sender,client,recipient,helo), transport, aliases, mailboxes, whatever.

So, it is left to your imagination.