On Wed, Dec 11, 2019 at 01:44:35PM +0100, Matus UHLAR - fantomas wrote: > > old school "attachment" no Content-Type, plaintext, uuencode inline. > I don't think SA decodes that. > I don't know if it should, but at least detection should be OK.
When Content-Type is missing, part is assumed to be text/plain. SA does not and should not do any kind of content decoding/mangling for text/plain contents. Even if it looked like something that. As a small exception to this, previously SA tried to decode HTML if heuristics found HTML at the beginning of a text/plain part. But this was scrapped in 3.4.3, since no MUA actually does that these days, that was decade old code.. But everything depends on what popular MUAs do. If they suddenly decide to start decoding some random text contents, then SA should be modified as such.
