/usr/doc/mutt includes a couple of useful sample files from the mutt sources (contrib/sample.*). It doesn't seem to include the sample mime.types file from the top directory of the mutt sources. It would be nice if this was included in /usr/doc, too. Currently, you don't get it if you install the mutt binary rpm; you have to unpack the src.rpm to get at it. I can't do patches usually, but this time I'm going to guess that adding %doc mime.types ...to the specfile's %files section might work? I am using a slightly mangled mutt rpm: it started off as the 1.0pre2-us src.rpm built by Bill Nottingham, then I updated it to pre3 and PGP-happiness. I didn't alter anything else from the specfile, because I didn't notice this at the time. Thanks.
Fixed in mutt-1.0us-3, will be in next Raw Hide release.