On Fri, 31 Aug 2001, LInux LOver spewed into the ether:
Dear all,
I have installed postfix for experimenting.. Now what I want is that user having from address with my domain name can only relay. can somebody tell me how do i do this.
Postfix relays based on ips. You can add further domain name restriction by looking at header_checks. See the man pages and search the archives of the postfix mailing list for exact implementation details.
Devdas Bhagat