Subject: bug#13328: 24.2; Rmail does not properly decode MIME messages containing "From " lines or save such attachments correctly

From: Eli Zaretskii <[email-masked]>
Date: Mon, 07 Dec 2020 18:04:22 +0200

> From: Lars Ingebrigtsen <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Mon, 07 Dec 2020 15:47:03 +0100
> 
> Other mailers only add a ">" to the front of lines that match mbox
> separators.  ">From" does not match any mbox separator, so there's no
> accumulation.

But Rmail uses "^From:?" as the regexp that identifies the beginning
of another message in an mbox file, so it must quote other "From"s to
avoid catastrophic failures later.  Or am I missing something?