I often start emails like:

Hey Jude,

Just “Hey”, their first name, and a comma. Then two line breaks, and launch into things.

Sometimes I copy and paste their first name from elsewhere on my screen at the movement, but usually I don’t. I often look at their name and type it out myself letter by letter. Just a minor little personal thing. I’m speaking to them, the least I can do is actually learn how to spell their name, at least for a moment.