Hi. FYI, there are instructions and a script for doing so in the contrib/ directory (namely README.Mailif file and associate resources) of the original (upstream) tarball.
Debian packagers seem not to have included these in /usr/share/doc/bugzilla/contrib as is sometimes seen, but in /usr/share/bugzilla/contrib/README.Mailif Hope this helps. Best regards, -- Olivier BERGER <[EMAIL PROTECTED]> (ATTENTION : new address) Ingénieur Recherche - Dept INF GET/INT at Evry (http://www.int-edu.eu/) OpenPGP-Id: 1024D/6B829EEC