Thanks for all of the advice. I was afraid that I would have to add some sort of glue application to tie the two together. We run MailScanner with Sendmail, DCC, Razor and SA on the final delivery machines but I was hoping to have a frontend filter with a somewhat simpler setup from a maintenance point of view. I have installed amavisd (from Dag Wieers repo.) on one of our MX machines for testing purposes and if, as I anticipate, I have further questions then I will be back. Actually, I have one. The setup documentation refers to a duel sendmail setup. Will the default install work with one sendmail instance? If I have to set up two then I might as well go the whole MailScaner route. Regards, Jim -- *** e-mail is NOT a secure channel *** James B. Byrne mailto:ByrneJB.<token>@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3CE delivery <token> = hal