Rules series # 1 : There is not enough space on the Microsoft Exchange Server to store all of your rules
When you use rules in Outlook, you may receive the following error message:
There is not enough space on the Microsoft Exchange Server to store all of your rules. The rules that failed to upload have been deactivated.
To work around this issue:
• Create distribution lists (DLs) to group recipients in rules, instead of using individual recipients.
• Keep the number of recipients small in rules.
• Keep the names of recipients as small as possible.