You’ve just replied to a colleague you talk to five times a day, and somehow your message still starts with “Dear Mr. Alvarez” and ends with “Best regards, [Full Name].” Meanwhile, last week you opened a message to a potential client with “Hey there!” and never heard back. Neither email was wrong, exactly — but neither one matched the relationship it was written for.
This is one of the most common gaps in business English, and it has nothing to do with grammar. It’s a formality problem. Many people learn one “correct” email template and apply it to every message, whether they’re writing to a stranger or the coworker two desks away. Native speakers adjust constantly, almost without thinking. Here’s how to build that same instinct.
Why you’re stuck on one formality setting
If you learned business English through a course, you probably learned it as a fixed formula: “Dear [Name]” to open, a few formal sentences, “Best regards” to close. That formula isn’t wrong — it’s just one setting on a dial that has many settings. Native English speakers move that dial based on three things: how well they know the person, how much seniority that person has relative to them, and how far into an exchange they already are.
The result shows up in two opposite ways. Some people stay too formal for too long, which can read as distant. Others swing the other way, opening a first message to a new client with “Hey!” or “Hi there!” — which can land as presumptuous before any trust has been built. Neither mistake is about vocabulary. Both come from treating formality as fixed instead of as something that shifts with context.
Matching your greeting and sign-off to the relationship
For a first contact with a stranger — a cold outreach, a new client — open with Dear [Full Name], or Hello [First Name] if the company culture is clearly casual; close with Best regards or Kind regards. For an ongoing client relationship, once you’ve exchanged a few messages, drop a level: Hi [First Name] to open, and Best or Thanks to close.
For an internal colleague you work with daily, greetings can shrink further — Hi [Name], or on a rolling thread, no greeting at all — and sign-offs like Thanks or Cheers, or nothing on a quick reply, are completely normal. For your boss, most modern workplaces default to Hi [Name] unless they’ve signaled otherwise; close with Best or Thanks. For a casual teammate, Hey or skipping the greeting entirely is fine. The pattern across all of these: formality goes down as familiarity goes up.
The mistakes that give you away — and how to loosen up over time
Opening “Dear Sir/Madam” once you already know the recipient’s name and have exchanged several emails reads like a form letter. Opening a cold email to an external client with “Hey!” skips past the trust that formality is there to establish. In a fast back-and-forth thread, repeating a full “Best regards, [Full Name]” signature on every reply feels stiff and slows the reader down.
The deeper skill is letting formality shift naturally as a relationship develops, rather than resetting it every time. A typical arc: message one is fully formal. Messages two and three shorten the greeting. Weeks into a working relationship, both sides usually relax further on their own. The safest approach is to mirror the other person’s register — but also don’t stay frozen once they’ve clearly loosened up with you.
Never second-guess a greeting again
TypeAI reads the context of what you’re writing and suggests a greeting, sign-off, and overall tone that actually fits the relationship, so you don’t have to run through a mental checklist every time you open a new email. Try TypeAI
FAQ
Is it ever okay to skip a greeting entirely?
Yes, but only once a thread is already established and you know the person well, like a colleague you email several times a day. Skip it on a first message, a message to someone senior you don’t know well, or any message to an external contact.
What do I do if I don’t know the recipient’s gender or preferred title?
Use their full name instead of a title: “Dear Alex Kim” or “Hello Alex Kim” works for a first email and avoids guessing wrong between Mr., Ms., or another title.
Should I match the other person’s formality, or set the tone myself?
On a first cold outreach, you set the tone, so start a notch more formal than you think you need. After that, especially with senior or external contacts, follow their lead.
“Best regards” feels overused. What else can I close a formal email with?
Kind regards, Best, and Warm regards all work well. “Many thanks” is a strong choice when you’ve just asked for something. “Sincerely” tends to read as overly formal or dated in everyday business email.