Stop IOS devices pulling in read emails again.

HI there, not the best title question 'll grant you!

IS there anyway, short if delete from server, of stopping IOS devices pulling through emails that have been read neither the desktop Mac or other IOS devices?

I Have a paid Hotmail (Outlook) account that I've had for, probably, 20 years or more and really don't want to have to change my email address. I have all my emails going back to whenever (that I want saved) on the server so not sure how I can stop the problem.

It can amount to very many emails, typically,coming through onto the iPad that I've already read on my iPhone or iMac so to tidy up I have to spend ages going through and manually 'deleting' them from the iPad. It's not unknow for. Those same emails to then be pulled in again.

Thanks for any tips, fixes or work rounds