>The part *is* an attachment, but when it's a text/calendar attachment it >would appear that mhshow defaults to displaying it.
The answer's in the mhshow(1) man page: By default, mhshow will display only the text parts of a message that are not marked as attachments. This behavior can be changed by the -notextonly and -noinlineonly Although technically I believe we shouldn't display those calendar attachments even when they're text/calendar according to that man page, but ... different problem. The thinking for those defaults was that show/mhshow are for displaying "text" content designed to be displayed on a terminal. Stuff under "application" is generally supposed to be input to another application. Hence the reason that text/calendar is under the "text" media type. You can look at mhshow(1) for more details on how to change that. --Ken