Hi,
Yesterday just after 5PM EST, messages from certain domains on my mail
server started being rejected by google with the message:
Our_system_has_detected_that_this_message_is/550-5.7.1_likely_unsolicited_mail._To_reduce_the_amount_of_spam_sent_to_Gmail,/550-5.7.1_this_message_has_been_blocked.
It is not every domain; and I do not find any pattern as to why it would
be happening. One client runs a mailing list with over 800 subscribers
on my server and successfully sent about 160 messages to gmail
addresses, while another client who barely emails at all is being
blocked. it varies from moment to moment, but overall seems about 60%
of the mail is being blocked for this reason.
I manage another mail server, and not having this problem on that
server. Have checked the blacklists and not finding myself there. Not
finding any evidence of a compromised account or any unusual activity.
Even TalosIntelligence has us listed as Trusted, when we are mostly only
listed as good on their site.
Wondering if anyone else is experiencing this problem, or if anyone is
aware of a change that Google might have implemented about 18 hours ago?
Maybe anyone from Google or someone who has had similar problems can
shed some light on this.
--
Please let me know if you have any questions.
Mohit Godiya
Computerisms
mo...@computerisms.ca <mailto:mo...@computerisms.ca>
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