On Sat, Dec 10, 2022 at 02:57:42AM -0500, pa...@quillandmouse.com wrote: > You don't want to do this. Consider an MUA which stores your mail in > "mbox" format-- one email right after another in one file. The > delimiter is a line which starts at the left margin with the word > "From".
Technically, it's the 5-character sequence "From " (including the space) that matters in mbox formats. If you begin a line with "Fromage", or "From:", or even "From" followed by a tab, it won't need to be escaped/armored.