I think the correct is you will get message if you win/lose

But not sure the other one....

Do you want me to send you a message if you win or loose?
I thought I read that you didn't like too much spam in your mailbox

I can send you messages about how much you won individually, any treasures found by the guild, points stolen from the target, and the results of the raid. I think I probably should enable it, having read my own post

Spam messages aren't that much of a problem. If I don't want to read, I just delete.

I thinks it's better that we get informed about the raid, even though it's annoying.