On 29.07.2024 at 17:08 Scott Q. via mailop wrote: Anyone else dealing with Outlook not rewriting the header From upon forwarding a meeting invite ?
This is obviously wrong and breaks on domains with strict DMARC policy. I only found this thread that's 3 years old talking about it: https://learn.microsoft.com/en-us/answers/questions/335985/issues-forwarding-meetings What would the recommended behavior be ? Not forward invites ? Switch MUA ? Although this behavior is completely annoying (even for meeting requests which are only forwarded internally) and differs to what Outlook does when forwarding any other message types, it is not new. Outlook acts this way since as far as I can remember. I heard once that Microsoft set it up like this because of the meaning of the From and Sender header fields in RFC 4021 section 2.1, which RFC 5322 picked up: The From header contains the address of the author of the message (the organizer), whereas the address of the person who forwards/sends the meeting request is put into the Sender field. You already mentioned two possible workarounds: Stop using Outlook (which might not be an option for everyone) or stop forwarding meeting requests, especially to other organizations (which I tell people who report the problem you described). That is because forwarding meeting requests actually has further drawbacks: - The other participants of the meeting do not see who is invited. - The organizer of the meeting does not necessarily know about the additional attendees, so they do not receive possible updates of the meeting. - Outside of the IT world it is generally considered impolite if guests forward/extend invitations on their own. Instead they can ask the organizer, leaving the decision who gets invited to him. The third workaround to forward as an attachment has already been mentioned as well, which encapsulates the meeting request in a new message with the forwarders address in the From field. — BR Oliver ________________________________ dmTECH GmbH Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe Telefon 0721 5592-2500 Telefax 0721 5592-2777 dmt...@dm.de<mailto:dmt...@dm.de> * www.dmTECH.de<http://www.dmtech.de> GmbH: Sitz Karlsruhe, Registergericht Mannheim, HRB 104927 Geschäftsführer: Christoph Werner, Martin Dallmeier, Roman Melcher ________________________________ Datenschutzrechtliche Informationen Wenn Sie mit uns in Kontakt treten, beispielsweise wenn Sie an unser ServiceCenter Fragen haben, bei uns einkaufen oder unser dialogicum in Karlsruhe besuchen, mit uns in einer geschäftlichen Verbindung stehen oder sich bei uns bewerben, verarbeiten wir personenbezogene Daten. Informationen unter anderem zu den konkreten Datenverarbeitungen, Löschfristen, Ihren Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie hier<https://www.dm.de/datenschutzerklaerung-kommunikation-mit-externen-493832>.
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