When I write important work-related emails, after I’ve finished writing I leave it open without hitting send, then go make myself a coffee or something completely unrelated to clear my head.
When I return, I re-read what I wrote and often find things that were written ambiguously, incorrectly, or outright weirdly. And with a myriad of spelling and grammar mistakes. Often I find that I forgot to include important points or information.
This gives me an opportunity to proofread before hitting send with semi-fresh eyes.
On lemmy, on the other hand, I find myself editing my own comment right after posting.