email from SendGrid to outlook.com being marked as junk mail but SPF, DKIM and DMARC all passing

Michael Smith 1 Reputation point
2021-03-10T22:22:11.74+00:00

Hi Team,

I posted this on answers.microsoft.com first and they sent me here. https://answers.microsoft.com/en-us/outlook_com/forum/oemail-osend/email-from-sendgrid-being-marked-as-junk-mail-but/ec783e3c-5ab4-48f5-a326-f64c36a07112

No idea what the best tag is for this.

I am using SendGrid to send some transactional emails for my users and finding that outlook.com users are getting the emails put into junk mail.

as I said, SPF, DKIM and DMARC all passing but the emails still go to junk.

This doesn't happen for Gmail or other providers

Any help would be appreciated.

  • Michael
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  1. JeffYang-MSFT 6,241 Reputation points Microsoft Vendor
    2021-03-11T05:45:24.167+00:00

    Hi @Michael Smith ,

    Are you using Outlook desktop client?

    As I know, in Outlook desktop client, from the recipient's perspective, we can add senders' email addresses to Outlook safe sender list so that Outlook will not incorrectly classified your email as junk.
    76612-13-44-39.png

    For more information:
    Overview of the Junk Email Filter
    Change the level of protection in the Junk Email Filter

    Hope this can be helpful.


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