Setting Mail app rules when using gmail account AND iCloud account

I'm having a problem. I recently subscribed to a *daily newsletter* of the MIT. Added to that I have some other newletters from news websites. Resulting in an average of 10-20 Mail messages per day. I want to set up mail rules for Mail on iPad. I have a quite specific account configuration on Mail, I have one gmail account which is the one concerned with the newletters and one iCloud one on which I get an email every 3 years (not really but I got about 1-2 emails since 2019). I have tried **going to gmail.com** to add rules for incoming emails, but, ***it doesn't work***, I added the rules, seemed alright, it showed the emails in question when searching for what I wanted (ex. Searching for subject containing "MIT", it shows all the newletter emails I have received including the most recent ones). But it doesn't seem to work at all, not even on the gmail.com website. I have also tried **modifying Mail rules on icloud.com**, following tutorials I've found. I don't know if this worked because I haven't received emails on iCloud for a year or so. And I don't think setting Mail rules for iCloud will be useful since I haven't subscribed to newsletters on it. That's quite a big problem because I need to spend time each day to sort manually all the newsletters in separate mailboxes and if I don't do this, the emails will accumulate and saturate my inbox and I will need to spend a lot of time searching for important emails. I read my newsletters about every weekend but haven't found a way to send all of them directly on Saturday for example (setting up in websites that are originating newsletters), but that's not the problem. My question : **How to set Mail rules for Mail app (iPad) when connected to two accounts, one gmail receiving tons of newsletters and one iCloud receiving very few emails?** *Note: I am on iPad 6th generation running iPadOS 16.2* **Edit** : The gmail rules I've set (all of them are using the same parameters except the one for wordoftheday@vocabulary.com which is using the sender) : When clicking on "edit" for "MIT" : (Click on the images to open fullscreen (better resolution))