🚀 go-pugleaf

In Symbolics 3640 Zmail in Genera 8.0, ... Symbolics 3640 #5576 (Occam):

Unix inboxes use a line beginning with "From " as the indicator of the
start of a message.  The Unix mailer, therefore, escapes any lines in
the message body that begin with "From " by inserting a ">" at the
beginning of the line.  Mail readers (e.g. Zmail and RMAIL) should
perform the inverse translation when reading in Unix mail files.  There
*is* the minor problem that the Unix mailer doesn't escape true ">From "
lines, but I think it's more likely that ">From " at the beginning of a
line is due to the mailer adding the ">" than that the ">" was
originally in the message (a heuristic would be to check whether the
first character of the preceding or succeeding line is also a ">").
                                                barmar