Maximum message size increased to 150MB for all types of migration to Exchange Online

​Few months back, the Exchange Online team announced a long awaited feature – increasing the maximum size for messages to 150MB. This was actually a two-part solution, with the first part being allowing migration of messages larger than 25MB (35MB) during remove mailbox moves via the Mailbox Replication Service. This made …

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Quickly list all mailboxes to which a particular user has access

Quick and painless PowerShell examples to list the permissions for specific user across all mailboxes in the tenant. Includes examples for Full Access, Send on behalf of, Send As permissions, and more. Fastest way to find out which mailboxes a given user has access to. …

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Revamped Connectors GUI in Exchange Online

Microsoft has recently pushed an update to the Connectors GUI in Exchange Online. It now uses a wizard-like interface which guides you through every step of the process and provides additional information along the way. It will also validate the settings before allowing you to save the connector (you can …

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Be careful when converting Room mailboxes, or why are messages automatically deleted

Another interesting issue I encountered on Experts Exchange: messages sent to shared mailbox were being deleted immediately after arriving in the Inbox. None of the common suspects were the cause (rules, add-ins, mobile devices, etc). The only thing left uncertain (and unverified by the author) was the automatic processing options, the …

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Assigning multiple administrative roles to a user in Office 365

This question popped up on Experts Exchange recently. The answer is that you can indeed assign multiple roles to the same user, however you will need to use the WAAD module for PowerShell to do so. Here are the steps: Login to the service using Connect-MsolService Get the Role object …

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