A handful of set phrases go a long way
Professional email follows fairly predictable patterns. Learning a small set of these phrases means you can write a polished, professional email quickly without agonizing over wording every time.
"Sincerely" vs. "Best regards"
"Sincerely" leans slightly more formal and suits a first-contact or official letter, while "Best regards" is a safe, widely used choice once you already have an established working relationship.
Frequently Asked Questions
Do I need to use formal phrasing in every email?
Not necessarily — with close colleagues, more relaxed language is fine. But for a first contact, a superior, or an external partner, the polished phrases here are a safe default.
When should I use "Sincerely" instead of "Best regards"?
"Sincerely" fits a somewhat more formal, official letter, while "Best regards" works well across most ongoing professional relationships where you already know the other person.