Re: plain-text checksums considered useless

OK, I'm convinced:  checksums belong in base64.  (This also makes me
feel better about a concern nobody but me seemed to be worrying about,
which is pipe-oriented encoders, which wouldn't be able to write a
checksum in the header but only at the end of the data.)

Any objections to an optional checksum at the end of base64-encoded
data?  Personally, I feel rather strongly that it should be optional,
but then I'm more confident than many people about the potential
robustness of base64-encoded mail.