#714: Lines starting From aren't escaped saving from Maildir to mbox Comment (by rtc):
Replying to [comment:12 vinc17]: > I've noticed that he avoids talking about the restrictions on line lengths: escaping a "From " line adds a character, which is bad if the maximum line length had already been reached. ... > Though this doesn't apply to mailbox formats, I wouldn't be surprised if some/much mail software assumes that messages in mailboxes are in the RFC2822 format (this would be rather logical after all). The RFC message format is a layer above the mailbox. The mailbox stores collections of messages transparently, that is, without assumptions about the message format, while it should be possible to store the messages in any mailbox format, without any assumptions about its structure. If you read from a mailbox, you must hence undo the From_ quoting before assuming that you can handle the message. > Also, if one assumes that nowadays, mail software supports MIME, quoted-printable allows to encode the "From" without any corruption. That would tamper with the message and violate the layer separation principle. -- Ticket URL: <http://dev.mutt.org/trac/ticket/714#comment:13>
