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A user cannot create new rules in Outlook or Outlook Web App

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Symptoms

A user cannot create new rules in Microsoft Outlook or in Outlook Web App (OWA). Additionally, the user receives the following error message:
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.

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Cause

This issue occurs because, by default, the size limit of the rules in the mailbox is set at 64 kilobytes. If the size of the rules reaches this limit, the user receives an error message.  

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Resolution

 To resolve this issue, increase the size limit for rules in the mailbox. To do this, follow these steps: 
  1. To determine the size limit for rules in a mailbox, run the following command in the Exchange Management Shell:

    get-mailbox -identity <mailbox> | fl *rulesquota*
  2. If the current size limit is less than 256 kilobytes, run the following command to increase the size limit to 256 kilobytes:

    set-mailbox -identity <mailbox> -RulesQuota 256kb
Note: This is an Active Directory cached attribute and changing it may take up to two hours to take effect.

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More Information

Tenant admins can also increase the size limit of the rules for their users in a Microsoft Office 365 environment. For more information, visit the following Microsoft website:
https://go.microsoft.com/fwlink/?linkid=2003907
If you are in a dedicated or an ITAR Microsoft Office 365 environment and experiencing this issue, members of the Limited Recipient Management self-service group can increase rules quota by using the commands in the "Resolution" section (12.3 version of the service and later versions).  You may also escalate to Microsoft Online Services Support.

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Keywords: kb, vkbportal250, vkbportal226

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Article Info
Article ID : 2622933
Revision : 3
Created on : 11/19/2019
Published on : 11/19/2019
Exists online : False
Views : 208