For the hairy details of where the short extension comes from, see $map_full_type_to_short_type_re in the amavisd main file.
I'm trying to figure out where map_full_type_to_short_type_re is located. You said the amavisd main file, but I am running Ubuntu so I don't have an amavisd.conf file. Besides all that, I assume I can always add it to my 50_user file but where do I point it to? Where's the regex table that this line refers to? I can't seem to find ANY documentation as to exactly how map_full_type_to_short_type_re works exactly.
Thanks
