Hi, using Exchange 365 and GMAIL is bouncing all emails -- unsolicited email from your IP address

Anonymous
2023-09-09T15:18:02+00:00

I did all the domain checks and everything is checking out fine. SPF and reverse DNS are all correct.

"Remote server returned '550 5.4.300 Message expired -> 421 4.7.28 [2a01:111:f403:7052::701 15] Our system has detected an unusual;rate of unsolicited mail originating from your IP address. To;protect our users from spam, mail sent from your IP address has been;temporarily rate limited. Please visit; https://support.google.com/mail/?p=UnsolicitedRateLimitError to"

Is there a problem on the MS IP addresses right now?

Microsoft 365 and Office | Subscription, account, billing | For business | Other

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  1. Anonymous
    2023-09-27T16:52:48+00:00

    Had the same problem. You fix was only the beginning and no relationship to the problem in this thread. Benjamin has written out all that needs to be done. way above

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  2. Anonymous
    2023-09-27T16:24:10+00:00

    The sad this here is a lot of people as posting the issue, no assistance from Microsoft which we are all paying money to, and people are not posting any information -- very very sad.

    I found, strictly by accident logging into the Admin part of Exchange Online ( or Office 365 ) that there was a message stating my DNS records were not right...looked at what MS was saying by looking at the DNS records and added the information to my DNS server -- and lo and behold the errors MS was saying were there went away... I've not tested a "reply all" yet to see if GMAIL issue is resolved...

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  3. Anonymous
    2023-09-27T15:06:55+00:00

    None of this was set up for us on GoDaddy. 365 Admin seems to communicate just fine with GD, but I cant get the CNAMES and DMARC to show up on the 365 console, but they are there in GD and my multiple gmails are going through so far, so am hesitant to touch anything. Maybe all the rest of the records in GD beside the original MX, TXT and CNAME record are not supposed to beto chow up. I'd be grateful is a MS tech could give us a hint assuming they are monitoring this thread.

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  4. Anonymous
    2023-09-27T14:46:41+00:00

    we updated the CNAME with a couple of those selector text. we have not touched the DMARC but we had to move from WIX to GoDaddy and may be the DMARC was set up correctly when we moved over saturday during our change window.

    we were just lucky, Bill

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  5. Anonymous
    2023-09-27T14:45:12+00:00

    I agree, we have to fix it. ugh. we were just lucky with our fix. more later

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