GetFolder sometimes returns an incorrect TotalCount when issued against a Public Folder mailbox hosted in Office 365 No ratings yet.

Symptoms When issuing an Exchange Web Services GetFolder request to a public folder mailbox hosted in Office 365 Exchange Online, the TotalCount returned in the response may incorrectly show a value of 0.  More Information Office 365 Exchange Online engineering…

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PowerShell: Update folders (delete/purge, or add/delete properties) No ratings yet.

Please note: the script has now been moved to https://gallery.technet.microsoft.com/exchange/PowerShell-Update-mailbox-79fd411a. This script allows you to update folders by adding or removing properties.  You can also use the script to purge or delete the folders. To delete properties from a folder: .\Update-Folders.ps1…

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EWS: Performance issues when accessing multiple mailboxes? 5/5 (1)

We’ve had a few cases come through over the past few months regarding slow performance against Office Online from an EWS service application.  Several of them have come down to a very simple .Net setting that isn’t necessarily obvious.  In fact,…

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EWS: Streaming Notifications and Exchange 2013 (and Office 365 Wave 15) No ratings yet.

Exchange 2013 introduced a new affinity model which means that streaming subscriptions to multiple mailboxes need to be handled in a different way to earlier versions.  If you are connecting to a single mailbox, you shouldn’t have a problem, but…

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