Due to DMARC policies, some mailing lists and also the b4 http relay override the From: header. While in the b4 relay case, a From: is added in the body to keep git happy, this is not the case for many mailing lists. Google groups add an X-Original-From: header to preserve the original value. This is also done by the b4 relay.
Could b4 perhaps check if a X-Original-From: header exists and use that instead of the mangled From, to handle cases where the body doesn't contain an explicit From: and the mail is not fetched from public-inbox (--use-local-mbox)?
Due to DMARC policies, some mailing lists and also the b4 http relay override the
From:header. While in the b4 relay case, aFrom:is added in the body to keep git happy, this is not the case for many mailing lists. Google groups add anX-Original-From:header to preserve the original value. This is also done by the b4 relay.Could b4 perhaps check if a
X-Original-From:header exists and use that instead of the mangledFrom, to handle cases where the body doesn't contain an explicitFrom:and the mail is not fetched from public-inbox (--use-local-mbox)?