Dec 13 2021 12:31 PM
Hi all. Could anyone help me to find a solution in my case.
We use an SMTP relay to send emails from an internal application to our clients (invoices and other documents). Part of the documents goes to spam. Here is replay, which we get from clients:
DOMAINX.COM suspects your message is spam and rejected it.
We have configured spf, dkim and dmarc.
Reported error:
550 5.7.350 Remote server returned message detected as spam -> 550 X-Spam-Status: Yes, Invalid sender: DOMAINY.COM
DSN generated by:
DBAPR06MB7109.eurprd06.prod.outlook.com
What confuses me, is the DKIM part in mail header:
dkim=none (message not signed) header.d=none;dmarc=pass action=non
There are no issues if we are sending emails directly from outlook (dkim pass, spf pass, dmarc pass).
None of our domains or IP are in the spam / blacklist.
Dec 14 2021 12:50 AM
Dec 14 2021 12:58 AM
Hi @Adir_Moshe
I have tried to use this site to check header, but I can't find any useful information there. Header says that spf=pass, Spam Confidence Level 1 (which could indicate, that email don't looks like a spam message).
Thanks.
Dec 14 2021 01:05 AM
Dec 14 2021 06:25 AM
Dec 14 2021 12:44 PM
Dec 14 2021 12:45 PM