[Users] Mystic MBOX format

[Christian Buhtz]

Hello,

does anyone ever seen an MBOX file beginning with such lines?


>From christian.buhtz at medizin.uni-halle.de Tue Nov 05 16:59:12 2019
AF:
NF:0
PS:10
SRH:1
SFN:
DSR:
MID:
CFG:
PT:0
S:christian.buhtz at medizin.uni-halle.de
RQ:
SSV:smtpauth.uni-halle.de
NSV:
SSH:
R:<snipped at medizin.uni-halle.de>
MAID:1

Is this a valid MBOX format? Couldn't find such fields in the RFC.
My question is related to the Bug Report
https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4309

kind
Christian