How to fix “Failed to get group accounts sids of a user” when connecting to EXO remote PowerShell.

In an Exchange Hybrid environment where user accounts are on-premises and mailboxes are in Office 365. You have confirmed that you do have administrator rights and was able to connect to EXO remote PowerShell before. Problem: You are getting an error message “Failed to get group accounts sids of a user…” when trying to connect…

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How to fix Attribute Value Must Be Unique “AttributeValueMustBeUnique” error message when trying to sync an object from on-premises Active Directory to Office 365.

You received a synchronization error report email from MSOnlineServicesTeam@MicrosoftOnline.com similar to the following: Hello admin@constoso.com, You can troubleshoot this issue by running the Directory Synchronization troubleshooter on the server that has Azure Active Directory identity synchronization tools installed. The Identity synchronization tool batch run was completed on Thursday, 23 March 2017 12:54:13 GMT for directory…

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How to delete corrupted, hidden inbox rules from a mailbox using MFCMAPI

This is useful when you receive duplicate messages or any of the inbox rules are corrupted or not working as expected. I have included related KB article below for reference. https://support.microsoft.com/en-us/kb/924297  1. Export all rules from you Outlook so that you may import them back after deleting all rules via MFCMAPI.     On your Outlook…

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