Forum Discussion
Why do some Outlook rules simply not work?
I just want a tidy mailbox 😞 I have been having consistent problems with some Rules simply refusing to apply. I want to be able to run the rules once created on my whole mailbox to tidy up past ...
Hi francesca365,
there is a constraint not mentioned in the article which you unfortunately cannot change - the maximum size for all rules is 256 KB. However, this only applies for enabled rules and you should have received a warning if you were already near that limit.
https://docs.microsoft.com/de-de/exchange/clients-and-mobile-in-exchange-online/outlook-on-the-web/increase-the-space-used-by-inbox-rules
Personally, I do not know if there are any differences in applying rules in Outlook for Mac or Outlook for Windows.