Exchange Rules and Rackspace

So I received the following error today in Microsoft Outlook 2013, running Exchange 2013 via Rackspace: "One or more rules cannot be uploaded to Microsoft Exchange and have been deactivated. This could be because some of the parameters are not supported, or there is insufficient space to store all of your rules."

Exchange Rules and Rackspace

This error happens when a user typically exceeds forty rules for their messages, though this depends on the complexity of their rules. By default, the server has assigned 64KB of storage space to save rules and while this works for the vast majority of users, I've created quite a few rules for the few hundred emails I receive per day. This error is the result of

Now, if it was an on-premises server, I'd only have to do the following:

Get-Mailbox | fl rulesquota

RulesQuota : 64 KB (65,536 bytes)

Set-Mailbox -rulesquota 256KB

Then confirm it works:

Get-Mailbox | fl rulesquota

RulesQuota : 256 KB (262,144 bytes)

if you wish to set for all users:

get-mailbox|set-mailbox -rulesquota 256kb

get-mailbox|ft rulesquota, alias

The problem for me is that I'm on Rackspace and I assumed they would either:

A: Not know what I was talking about.

B: Refuse to fix it.

C: Tell me customization isn't supported

I decided to go ahead and ask anyway, requesting they move it from 64KB to 256KB, the maximum supported my Microsoft Exchange 2013. A little over six hours after submitting my support ticket, they emailed me back to let me know it was completed! Rackspace, as usual, offered great support!

For Microsoft's official documentation, please go here.

In older versions of Microsoft Exchange server, the error would instead be thrown as "There is not enough space on the Microsoft Exchange Server to store all of your rules".