Currently when specific IPs are allowed to relay from Domino server, then they can use any "From" address and all the mails will be allowed from Domino server irrespecitve of "From" address. This creates one problem that, there is no control over which "From" addresses are allowed from that IP. So there is a feature request that, Administrator should also be able to control which "From" addresses are allowed from that specific IP. So that they won't misuse the relay functionality. This Enhancement Request is submitted for Domino 12.0.x version.