On Wed, May 06, 2020, Kevin J. McCarthy wrote: > RFC5322 states that headers and the header/body delimiter are supposed to be > CRLF, but I (and ticket #235) note that mutt is writing them with just LF.
That's for SMTP -- if mutt is talking to an MTA (or MSA) it must use CRLF (though some MSAs fix bogus input instead of rejecting it). If the mail submission is done via command line, then on Unix it's usually just LF, and the MSP handles the conversion.
