Mutt has some heuristics for determining which attachment of a multipart/alternative type to display. First, mutt will check the alternative_order list to determine if one of the available types is preferred. The alternative_order list consists of a number of mimetypes in order, including support for implicit and explicit wildcards, for example:
alternative_order text/enriched text/plain text application/postscript image/*
Next, mutt will check if any of the types have a defined auto_view, and use that. Failing that, Mutt will look for any text type. As a last attempt, mutt will look for any type it knows how to handle.
To remove a MIME type from the
alternative_order list, use the