Outlook rules size limit

We have had a few calls on users not being able to add more rules in Outlook.  This behavior occurs if the rules that are in your mailbox exceed a size of 32 kilobytes (KB). The rules size limit for mailboxes on all versions of Microsoft Exchange Server is 32 KB.  Below are a few Methods to help decrease the size of your rules.

WORKAROUND

To work around for this is to use one or more of the following methods to decrease the size of your existing rules.

Method 1

Rename your rules to a shorter name. To rename a rule in Outlook 2003, follow these steps:

1. On the Tools menu, click Rules and Alerts.

2. On the E-mail Rules tab, click the rule that you want to rename.

3. In the Change Rule list, click Rename Rule.

4. Type a new, shorter name for the rules, and then click OK.

5. Click OK to close the Rules and Alerts dialog box.

Method 2

Delete any old rules. To delete a rule in Outlook 2003, follow these steps.

1. On the Tools menu, click Rules and Alerts.

2. On the E-mail Rules tab, click the rule that you want to rename.

3. Click Delete, and then click the rule that you want to delete.

4. Click OK to close the Rules and Alerts dialog box.

Method 3

Combine similar rules to reduce the overall size of your rules. If it is possible, combine similar rules to reduce the overall size of your rules. After you have combined similar rules, delete the rules that you do not need anymore. To edit an existing rule in Outlook 2003, follow these steps:

1. On the Tools menu, click Rules and Alerts.

2. On the E-mail Rules tab, click the rule that you want to edit.

3. In the Change Rule list, click Edit Rule Settings. Modify the rule as appropriate.

4. When you are finished, click Finish, and then click OK to close the Rules and Alerts dialog box.

Note: If you the rule is a client-only rules, you must click OK two times to close the Rules and Alerts dialog box.

4. Click OK to close the Rules and Alerts dialog box.

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