If you get a large volume of email on a daily basis like I do – then Outlook rules are your saviour. But what happens when you go too far?
Well, a little known limitation of Exchange Online is that there is a limit of 45 rules based on the Exchange rules quota of 256KB. If you created any more than 45 rules – the new rules would simply disappear without warning.
Unfortunately this is a limitation that can’t be changed by Office 365 administrators – however you are in luck: this quota can be increased by logging a case with the Microsoft Online Services support team.
It’s expected in a future update that administrators will be able to increase this limitation through the magic of PowerShell!
Discover more from Loryan Strant, Microsoft 365 MVP
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I think the default quota size is 64K. However there are ways to get more than 45 rules: http://msryanph.wordpress.com/2012/06/20/expanding-the-amount-of-outlook-rules-in-exchange-online-365/