Since people keep tripping over it, here are the hurdles to backporting Postfix to Slink. You will need to have libpcre2 (and -dev), version 2.04 or 2.05. (2.06 requires a source change in Postfix.) This requires backporting from Potato as well. You will need to have dhelp installed (or comment out the dh_dhelp line in debian/rules). lamont