I usually think for a while before writing emails and do draft. That's just because writing isn't the thing I'm best at. I have a tendency to put too many ideas in the same sentence or to put my sentences in the wrong order so I have to fix it afterwards.
yes, I often draft something then leave it be for a while and go pay attention to something else then come back to it - it is not just that I want it to be grammatically correct, but that I like to multitask so I don't stick to any one task for a long time, and then who knows may be at later time I will remember something important to add to the email
No but I need to sometimes. If I have a email that I have to send that I have to check myself in check so to say. I will mull it over and let it simmer some before I write or respond as I been having to do lately.