This is true. OTOH, I do think the problem is solvable. I came up with a routine to parse and translate about 2-3GB of saved emails into MBox format once. The

This is true. OTOH, I do think the problem is solvable. I came up with a routine to parse and translate about 2-3GB of saved emails into MBox format once. The official delimiter is unbelievable, IMHO. « the exact character sequence of "From", followed by a single Space character (0x20), an email address of some kind, another Space character, a timestamp sequence of some kind, and an end-of-line marker. » https://datatracker.ietf.org/doc/html/rfc4155 https://datatracker.ietf.org/doc/html/rfc4155 https://en.wikipedia.org/wiki/Mbox https://en.wikipedia.org/wiki/Mbox That's it. An email is a section of text beginning with From $something That's the spec.