IT Pro: Emails from MS Planner or Teams are not being delivered when Xink Server-side is enabled

After enabling Office 365 Server-side, users may experience undeliverable emails when sending from Microsoft Teams or Planner.

To resolve the issue, you have to add the below exclusions in your Xink rule under Office 365 Exchange Admin Center > Mailflow > Rules.

1. Under Rules, Select  Xink-Auto-Rerouting-Catcher and click Edit.

2. Select A message header > Includes any of these words

        Specify header name:

        Specify words or phrases:
                    /o=ExchangeLabs/ou=Exchange Administrative Group

3. Click Save.

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