Hi @Katie Phizacklea
Welcome to our forum!
For better research, I would like to know what the diary invitation refers to? Please provide a screenshot of the relevant (note to hide your personal privacy information).
In general, to set rules in Outlook, you can follow these steps:
- Right-click an existing message and select Rules > Create Rule.
- Select a condition, and what to do with the message based on the condition. For example, to move messages with a certain title to a specific folder, select the Subject contains condition, select Move the item to folder, select or create a New folder, and then select OK.
- When you're done creating the rule, select OK.
- To use the rule right away, select the Run this new rule now on messages already in the current folder checkbox, and then select OK.
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