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BFOFANA avatar image
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BFOFANA asked joyceshen-MSFT commented

Exchange Online mail spammed

Hello,

I have an Exchange Server 2016 environment that I am migrating to Exchange Online. The hybrid configuration has already been done.
Meanwhile, users migrated to Exchange are seeing their emails spammed when they send to other Exchange Online users belonging to other Office 365 tenants. Before the migration they did not have this problem.
If someone can help me to find the cause of the problem.

Regards

office-exchange-hybrid-itpro
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What does this mean exactly ? "Meanwhile, users migrated to Exchange are seeing their emails spammed when they send to other Exchange Online users belonging "

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when my user migrated to exchange Online send a mail to a domain hosting in Exchange Online, the mail is sent to spam folder.

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Hi @BFOFANA

Any update about your issue? Have you successfully configured SPF and DKIM record?

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not yet. I work on it.

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Hi

Feel free to share your progress here if any, good luck!

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MahmoudHanafi-6639 avatar image
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MahmoudHanafi-6639 answered joyceshen-MSFT commented

You can double-check that your DMARC, DKIM, and SPF records are all set up properly.

To validate, go to https://mxtoolbox.com.

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SPF is well configured but DKIM and DMARC are not configured?

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Hi @BFOFANA

Yes, agree with Andy, please follow the guide in the official document to configure the DKIM and DMARC record firstly then verify the result again.

Use DMARC to validate email


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AndyDavid avatar image
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AndyDavid answered
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