A part of the Office 365 Hybrid migration is to Synchronize AD object to the cloud ,
If there are errors regarding the synchronization you will get an email .
By default those email will sent to the email address you insert to the admin cloud user you created when first registering to the cloud
In order to change this email address do the following :
Steps to be performed:
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- Login to Office 365 Portal as a Global Administrator URL http://portal.microsoftonline.com
- Once logged in click on the Company Name
- In the new pop-up windows click on Edit
- Change the “Technical Contact” email address to the desired external email address. Cannot be the same tenants Office 365 Account.
- Click on Save