On Thu, 2023-05-25 10:59:38 +0100, Ian Collier wrote: > [..] > > Yes, the original MUA is 100% wrong on that point. The question here is > whether Mutt should compensate for it (see "Robustness principle").
But for the scenario Olaf described, Mutt comes only into play when the child has already fallen into the well: • The first MUA produces a message-id header without angle brackets. • The second MUA adds angle brackets to meet the standard. • Mutt (the third MUA) doesn't compare the (now different) message-ids equal. The only thing Mutt that could do about it, is relaxing the comparison from “equal or not” to “maybe somewhat equal enough”. Ludolf -- Ludolf Holzheid Bihl+Wiedemann GmbH Floßwörthstraße 41 68199 Mannheim, Germany Tel: +49 621 33996-0 Fax: +49 621 3392239 mailto:lholzh...@bihl-wiedemann.de https://www.bihl-wiedemann.de Sitz der Gesellschaft: Mannheim Geschäftsführer: Jochen Bihl, Bernhard Wiedemann Amtsgericht Mannheim, HRB 5796 Datenschutzerklärung: https://www.bihl-wiedemann.de/de/meta/datenschutz
