marc perkel vrvaperkelcom mark johnson wrote marc perkel wrote occasionally server something weird might open port 25 one specific ip running something really dumb think ive twice open port 25 problem user solved problem part mx sandwich youll get rid 80 spam lose good email fearful going way higher numbered mx leave bottom interesting want give try whats easiest way give 421 bogus mx log attempt build separate server use existing server run service another port ive got extra ips dont want complicate process im using exim listening several ip addresses arent using exim youll get someone help defer condition matchinterface_address6950231160 could point dead ip address simple way thu 07 aug 2008 072635 0800 ot bogus mx opinions