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Issue with email

Anonymous
2022-07-27T18:56:12+00:00

Below is the error

Error Details

Reported error: 550 5.7.364 Remote server returned invalid or missing PTR (reverse DNS) record for sending domain -> 550 Your message to <****@***.com, ***@***.com,;***at@****.com, ****@***.com> was classified as SPAM. Please;add more content, cut down on HTML links, use fewer naughty words etc. ;Also, ask your IT dept to make sure your mailserver has REVERSEDNS, SPF,;DKIM, and is not on any black lists. Your score: 200
DSN generated by: MN2PR20MB3085.namprd20.prod.outlook.com
Microsoft 365 and Office | Subscription, account, billing | For business | Other

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  1. Anonymous
    2022-07-27T19:44:28+00:00

    Dear Juan,

    Good day! Thank you for posting to Microsoft Community. We are happy to help you.

    According to your description, this non delivery report might related to your email sever being listed in black list, then we kindly suggest you contact recipient to contact their admin and refer Fix email delivery issues for error code 550 5.7.1 in Exchange Online | Microsoft Docs to ensure you are not in the restriction list and also check whether you are in IP block list, if so, they need to remove it.

    In addition, if you are Microsoft 365 business/education subscription owner, please contact the admin in your organization and check your DNS record set up properly by referringAdd DNS records to connect your domain - Microsoft 365 admin | Microsoft Docs.

    Sincerely,

    Tommy | Microsoft Community Moderator

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