>To: <"business owners"@mxgw2.castleweb.com> > >Since there are no valid addresses at mxgw2.castleweb.com (or mxgw1 or mxgw3 >either), I added this recipe to the header_check file:
to_recipients_known.map (repeat for all your domains): [EMAIL PROTECTED] ok [EMAIL PROTECTED] ok mxgw2.castleweb.com 554 ACL to_recipients_known unknown user ... rejects sooner and more efficiently than header filtering. Also, to reduce @sender.domain forgeries of your domains: from_senders_mybogus.map (repeat for all your domains): mxgw2.castleweb.com reject_unknown_client castleweb.com reject_unknown_client ... requires that all your ip's that send to IMGate have matching A and PTR records. Len
