On 10/22/24 3:08 AM, Samuel Sieb wrote:
On 10/21/24 11:28 PM, Jeffrey Walton wrote:
On Tue, Oct 22, 2024 at 1:58 AM Samuel Sieb <[email protected]> wrote:

On 10/21/24 9:09 PM, ToddAndMargo via users wrote:
Why does my "From:" come out "Community support for
Fedora users" when my posts show on this list?

There are certain providers who have spam protection settings that cause
problems with mailing lists.  I assume yours is one of them. For email
addresses with those providers, the mailing list rewrites the From to be
from the mailing list and puts your original email address as the CC.

Small nit... It is not the job of mailing list software to rewrite
headers for a mailing list. In fact, it breaks SPF and DKIM, and
violates the RFCs. Specifically, RFC 5322.

If someone signs up for a mailing list, then the member is expected to
receive the communications from the list. If the member does not want
the communications, then the member should run local filters or leave
the list. And if the member wants different behavior for "Reply" and
"Reply-To-All" for a mailing list, then the member should configure
their MUA accordingly.

Also see Tolerating Mailing-List Modifications,
<https://www.ietf.org/archive/id/draft-chuang-mailing-list-modifications-04.html>.

You've completed missed the issue here.  The spam settings of the sender's provider causes some receiving providers to reject the email. Neither user on either end wants this to happen.  So the mailing list becomes the sender, which is completely valid, and then there is no issue for those receiving it.

Curiously this behavior shows in Thunderbird on Rawhide but not in f39, Same provider
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