i use GFI faxmaker for exchange using it to print out faxs to different tcp printers on the network routed by subject. i keep the server in a locked room, keep it updated with patches and virus defs, watch it like i do all the other servers and have had no trouble with it in the past four years. i have never seen a vuln released for this software...not that there couldn't be a first time but it's record is pretty good. BTW using a digiboard it has eight modems and the worst that's happens is the occasional sandwich menu from the local deli when someone give out the number.