This is what it looks like in Gmail when a message has the correct one click unsubscribe headers:
On Wed, Mar 25, 2026, at 9:43 AM, Danil Smirnov wrote:
Hi Paul,
Could you tell me what's you MUA? I'm struggling to see any relevant controls in Gmail...
Sincerely, Danil Smirnov
ср, 25 мар. 2026 г., 15:15 Paul Tomblin via Mailman-users <mailman-users@mailman3.org>:
On Wed, Mar 25, 2026, at 12:10 AM, Stephen J. Turnbull wrote:
It is undeniable that Mailman is not suitable for a large fraction of announce lists. It's also true that (except for the relatively recent RFC 8058 "Signaling One-Click Unsubscribe" protocol) all of your
Speaking of which, I was wondering why my MUA didn’t put a one-click unsubscribe banner at the top of my mailman lists like it does for lots of other “mailing list” email I get. So I just read RFC 8058, and I realized that while Mailman puts on a List-Unsubscribe: header, it doesn’t have a URI in it, just an email address. It also doesn’t put on a List-Unsubscribe-Post: List-Unsubscribe=One-Click. The requirement for an “opaque identifier” looks hard to do in templates. I realize that it probably hasn’t been implemented due to your separation of Core and Web. But are there plans to provide something?
-- Paul Tomblin
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-- Paul Tomblin
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