non-TXT RR: reuse MB/MD/MF/MG/MR?

I don't know if the MS software handles them, but would it be possible
to reuse one of the obsolete RR types of MB, MD, MF, MG or MR?

Some of these record types specify additional processing, some are
supposed to be rejected or converted to MX records, but both MG and MR
look like they might be useable.


Yes, I know, this is not a clean solution, but is an option that I
haven't seen mentioned yet and it *may* be less ugly than some of the
other solutions.


-wayne