Re: Email explained from first principles
Alessandro Vesely <[email protected]>
| Newsgroups | gmane.ietf.smtp |
|---|---|
| Message-ID | <[email protected]> |
On Thu 27/May/2021 17:55:09 +0200 Kaspar Etter wrote: > Making it easier for mailing lists to keep DKIM signatures intact wouldn’t > force anything upon anyone. If mailing lists prefer to rewrite the sender > address, they’re free to do so. Mailing lists often do keep DKIM signatures intact. They only alter the rest of the message, but the transformations they do are stylized enough to allow to revert them and verify the original signatures. That requires just some cooperation, because DKIM is so flexible. Both the mailing list and its posters can operate so as to make reversion possible or not. For example, Kaspar's message that I'm replying to could not be reverted because the original signature by ef1p.com signed MIME-Version: and Content-Type:. Mailing lists need to control the values of those fields. To allow this kind of interoperability, an author's domain shouldn't sign them. Best Ale -- _______________________________________________ ietf-smtp mailing list [email protected] https://www.ietf.org/mailman/listinfo/ietf-smtp