[Maia-users] How to filter unknown user using Aliases file ?

[Mike Abraham]

Can someone help on this one ?

We have concluded our pilot, and decided to go to production, but I've encountered a problem with rejecting unverified recipients.

I have read everything I can on PostFix (& Maia's Archived List) on how to reject Unknown user, but I'm a bit confused.

1) If my settings go into main.cf, how does that apply to the MTA-RX ? 
	Doesn't it have to be applied in Master.cf to determine with MTA will reject ?


2) Is this the command I use if I want to reference my Aliases file ?

 	/etc/postfix/main.cf
   	 local_recipient_maps = proxy:unix:passwd.byname, $alias_maps,


3) We always use the aliases file to determine final destination. It's always been in the format below - is this ok for a reference file ?
The documents say it will ignore anything on the right, but will it ignore the : ?

student1:		student1 at server1
student2:		student2 at server2


Thanks everyone.

Mike Abraham
Conestoga College of Applied Arts & Technology