Office 365 Public Folders limit gets a 10x increase, bumped to 100,000

1 min. read

Published on July 15, 2014

published on July 15, 2014

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Microsoft has scaled up the limits for Public Folders in Office 365. Now, the folder count limit is capped at 100,000 folders — a 10x increase over the previous limit. This is simply the first round in the public folder scale improvements that Microsoft is working to deliver with Exchange Server 2013 to receive it next.

“We have made investments to scale up the limits for Public Folders in Office 365. Today we are raising the folder count limit to 100,000 folders. This is a 10x increase over the prior limit as defined in the Exchange service description limits. This enables migration of larger existing public folder hierarchies and increased use of the feature in Office 365. Customers can immediately take advantage of this new scale for public folders,” Microsoft stated in an official blog post.

With this increase, the number of public folder mailboxes and the total public folder quota remain unchanged. The folder count limit has been increased for all Exchange Online users with public folders. Exchange Server 2013 will receive this increase in cumulative update 6.

Radu Tyrsina

Radu Tyrsina has been a Windows fan ever since he got his first PC, a Pentium III (a monster at that time). For most of the kids of his age, the Internet was an amazing way to play and communicate with others, but he was deeply impressed by the flow of information and how easily you can find anything on the web. Prior to founding Windows Report, this particular curiosity about digital content enabled him to grow a number of sites that helped hundreds of millions reach faster the answer they're looking for.