Excerpts from direct: 21-May-93 Re: list of MIME content-ty.. Ned
What is the procedure to use to obtain a list of all
currently-registered MIME content-types?
Contact IANA, per the RFC.
Sorry, I was unclear. The question was more, "Does the IANA export a
periodically updated document listing all the registered MIME types, or
does one send mail to iana(_at_)isi(_dot_)edu every time one wishes to know what
they currently are?". The RFC doesn't say; it just specifies the
procedure for registering new types.