Dynamics 365 and Exchange Online UnknownIncomingEmailIntegrationError -2147220969

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Posted on by Tario

I am using MS-Dynamics online. The configured post-box in Dynamics CRM looks fine, the Status incoming/outgoing/appointments are displayed as successfully.

The Sync settings are :

Serverprofile : Microsoft Exchange Online

Incoming E-Mail messages : Server-side synchronization or email router

Outgoing E-Mail messages: Server-side synchronization or email router

Appointment, contact and activities: Server-side synchronization

However the E-Mails are not getting tracked to the Outlook-Dynamics-App. The warning i get is: Exchange server returned UnknownIncomingEmailIntegrationError -2147220969.

Anyone got an idea what the Error means or what i might doing wrong?

The E-mails which sent from a CRM Contact E-Mail are also not going to be tracked inside of the Oultook-App (Tracked to Dynamics 365 Undeliverable).

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Mustufa Furniturewala 50 on at

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Hi Tario,

Hope you are doing well.

This error is a generic error "UnknownIncomingEmailIntegrationError". It can occur for several reasons.

It could be specific to the Dynamics app for Outlook or EXO or D365 user/mailbox related.

You can look into the Outlook checker (Ctrl+Alt+Y) on the Dynamics app for Outlook and export the logs to get more information on the issue.

Alternatively, As this is D365 Online instance - Please reach out to MS support for further investigation.

Hope this helps.

Regards,

Mustufa

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