Re: Does GMail consider itself "low reputation"?

Hi Jon,


Thanks for sharing your experience. With the hosting experience I have
until today, it's indeed mostly GMail/Google which is the problem. Although
I've had some bad experience trying to get an e-mail (which was assigned to
me by my ISP) de-listed from Hotmail/Outlook/Live...

>From the DMARC reports I'm receiving, it looks like GMail *may* be becoming
more lenient with our domain, although I've been misguided on this topic
before (based on the mail system logs, not the DMARC reports). What I did
so far was introduction of ARC signing (for the mailing lists), tighten the
SPF checking on inbound mail, stop doing sender-callouts and made sure we
do SRS sender address rewriting.

Lets hope that the mail flow improves with all these measures. I'm looking
into a solution which receives and parses/visualizes the DMARC reports
(because forwarding them at the moment does not seem to work for ...
Google's DMARC reports).


Regards,

Erik.


On Fri, Jul 19, 2024 at 2:27 PM Jon Boone <[email protected]> wrote:

> I hope you can fix this issue, but I'm not optimistic.  I have had my
> personal domain hosted via Google Workspaces (or whatever they are calling
> it today) for over a decade and my neighbor across the street has been
> unable to reliably receive email from me to his Gmail account the entire
> time, despite other folks on the same email not having that issue.
>
> If you are able to find a reasonable solution, I'd love to hear it.
>
> —jon
>
>
> On Fri, Jul 19, 2024 at 7:08 AM Erik Huelsmann <[email protected]> wrote:
>
>> Hi,
>>
>> In the mail server logs, I found:
>>
>> 2024-07-19 10:39:16 1sUl13-00EJCh-1P ** [email protected] R=outbound
>> T=remote_smtp H=gmail-smtp-in.l.google.com [2a00:1450:400c:c04::1a]
>> X=TLS1.3:ECDHE_X25519__ECDSA_SECP256R1_SHA256__AES_256_GCM:256 CV=yes: SMTP
>> error from remote mail server after end of data: 550-5.7.1
>> [2a01:4f8:160:83c4::8      19] Gmail has detected that this message
>> is\n550-5.7.1 likely suspicious due to the very low reputation of the
>> sending\n550-5.7.1 domain. To best protect our users from spam, the message
>> has been\n550-5.7.1 blocked. For more information, go to\n550 5.7.1
>> https://support.google.com/mail/answer/188131
>> ffacd0b85a97d-368786b3865si463916f8f.529 - gsmtp
>>
>> This is from sending my prior mail from a GMail account. The "
>> common-lisp.net" domain has a High (=highest) domain reputation and the
>> IP reputation is not published, but also not referred to. So I can nothing
>> but conclude this must be the @gmail.com address that I'm sending from
>> that's triggering this response?
>>
>> How can I fight this?!
>>
>> --
>> Bye,
>>
>> Erik.
>>
>> http://efficito.com -- Hosted accounting and ERP.
>> Robust and Flexible. No vendor lock-in.
>>
>

-- 
Bye,

Erik.

http://efficito.com -- Hosted accounting and ERP.
Robust and Flexible. No vendor lock-in.