Check if a message is authenticated
Important: Messages that aren't authenticated aren't necessarily spam. Sometimes authentication doesn't work for real organizations who send mail to big groups, like messages sent to mailing lists.
On 5/16/24 7:36 PM, John R. Levine wrote:
> I think a lot of us have nanog whitelisted or otherwise special cased.
I don't and gmail is my backend. That's trivial falsification that lack
of an SPF records alone will cause gmail rejects.
Mike
>
> Also, it's been pumping out list mail for decades and I expect has a
> close to zero complaint rate so even without the SPF ths IPs it sends
> from have a good reputation.
>
> On Thu, 16 May 2024, Scott Q. wrote:
>
>> I'm surprised nobody noticed for close to 10 days. I was away
>> from work and upon coming back I saw the little discussion there was ,
>> in my Spam folder.
>>
>> On Thursday, 16/05/2024 at 18:56 John R. Levine wrote:
>>
>> On Thu, 16 May 2024, William Herrin wrote:
>>> The message content (including the message headers) is theoretically
>>> not used for SPF validation. In practice, some SPF validators don't
>>> have direct access to the SMTP session so they rely on the SMTP
>>> session placing the envelope sender in the Return-path header.
>>
>> But that wasn't the problem here, the SPF record was just
>> gone. Oops.
>>
>> I see that the SPF record is back and seems have the correct addresses
>> so we can now return to our previously scheduled flamage.