[Dovecot] Very complex Master User Examples using MySQL

[Marc Perkel]

  For those who are interested I have posted in the Wiki examples of 
using master users in very interesting ways.

In these example we will create 3 kinds of master users. The first will 
be users who can read all email for all domains. The next example will 
be users who can read all email for their domain only. The third example 
will be users who can read email of domains listed in a separate 
ownership table.

http://wiki2.dovecot.org/Authentication/MasterUsers

Go to Advanced SQL Examples at bottom

Let me know what you think. In order to actually make this work you'll 
have to apply this patch Timo just posted:

http://hg.dovecot.org/dovecot-2.0/rev/3ba227176cde