How do I stop mail from automatically trash meeting invitations?

Apple Mail does not have the option for "Kind". I am on 10.14 Mojave.
I did some comparing Email Headers and I ended up creating a custom rule in Apple Mail:

(This is for Apple Mail that is connecting to Microsoft Exchange Email Server using Office365)

1. Create a new rule in Apple Mail.
2. Choose Edit Header List
3. Add the Header: X-Ms-Traffictypediagnostic
4. Select it and then select "Contains"
5. Add "MeetingMessage" into the third box
6. Perform the following action: Copy Message to Mailbox
7. I previously created a mailbox and selected it: "Invitations Copy"

So far this is working excellent. I have a history of all invitations in there. The key is to not click on the buttons for them to accept/decline/maybe or OK if it is another meeting notice or cancellation.

Screenshot below.

Hope this helps others out there as well!

I'm using Catalina 10.15.5... Outlook drives me crazy by auto-deleting invites rather than ASKING recipients where they want the invite after they respond. So presumptuous of Microsoft to delete invites which almost always contain useful info.

You can save it in your IN box by going to: Rules - New Rule

RULE NAME: Give it a name

WHEN A NEW MESSAGE ARRIVES THAT MEETS ALL THESE CONDITIONS: Sent to/is: YOU Subject or Body contains "invite" or "invited"

DO THE FOLLOWING: Move to Folder - Use arrows to choose your Inbox

OK

I think that you need to select "Attachment Type", then select the option is "Executable". Has anyone tried this? My MBP is running macOS Catalina 10.15.3, I'll test this to see if it works.

You can set a mailbox rule, that when a message is both in trash, and is a Meeting request, move it to the inbox (or a folder/area of your choice).

Screenshot is OSX which I imply that you are using. This would be possible on Windows too with a similar approach.