On 2020-08-02 7:51 p.m., John Levine wrote: > In article <[email protected]> you write: >>> Unwrapping a MIME attachment is a lot easier than the proposed DKIM >>> unmunging but I doubt either is going to show up in MUAs any time >>> soon. Perhaps you could do it in a mail gateway. >> >> >> Looking at the steps required to carry out the proposed unmunging, "a lot >> easier" doesn't seem to be an accurate measurement. > > In python it's about two lines since there are well debugged libraries to > handle MIME. Same in most other languages.
If you use a library, most common operations can be done better than unusual ones, the actual complexity notwithstanding. The steps I outlined for tf=footer[*] can be done adding a few lines to Murray's library, in C. > I still would be amazed if any MUAs did this, also keeping in mind that the > changes that MLMs make ARE USEFUL. Agreed. IMHO, Murray's lib should do just a virtual unmunge, while canonicalizing. To actually replace From: with the original Author: can be done by the MDA, based on trusted A-Rs, after any dot-forward. Best Ale -- [*] https://mailarchive.ietf.org/arch/msg/dmarc/2ZN7DS5NktoyEPItZ5vzr-xd0Mc _______________________________________________ dmarc mailing list [email protected] https://www.ietf.org/mailman/listinfo/dmarc
