On 2023-11-24, Matt Connell wrote: > Sorry for the double post; I got a mail-undeliverable from Google so I > thought it didn't go through and retried it. Turns out it got to the > mailing list (both times) but not to gmail recipients because Google > doesn't like my SPF record (record says hard-fail on no match and > someone somewhere is using ipv6).
No, it's definitely not a problem at your side, this is still caused by the same user which is still subscribed using a @live.ru mailbox and then sets it to forward to their Gmail address. Last time I checked, Microsoft, when forwarding, pretends to be the original sender, instead of @live.ru, which triggers the failure you see from Gmail. In the details in the error/failure message the only thing that refers to you will likely be your address. The IP address which tried to send the message to Google belongs to Microsoft. -- Nuno Silva
