On Wed, Jan 28, 2026, Derek Martin wrote: > IIRC the date > in a From_ line is not interesting because the e-mail should carry the > Date header,
The difference between those two can be interesting, esp. when there are (large) delays; together with the dates in the Received: headers it helps to figure out where a delay might have happened. Stating the obvious: The Date: header should have the date when the mail was sent, the date in the From line should be the date when the mail was written to the mailbox.
