Professional Email Greetings: How to Open Client Emails the Right Way

By Tayyab Irshad · June 22, 2026 · 9 min read

Article Contents

Why the Greeting Sets the Tone for the Whole Email
The Three Categories of Professional Email Greetings
Which Greeting Fits Which Situation
How to Match Your Client's Actual Greeting Style
Greetings to Avoid (and Why)
Special Cases: Multiple Recipients, Unknown Names, Uncertain Genders
Greetings by Time of Day

The greeting is the first signal that an email sounds like the client, not the assistant. Most AI writing tools default to "Hi [Name]," regardless of whether the client ever opens their emails that way. That mismatch is one of the first things recipients notice.

Why the Greeting Sets the Tone for the Whole Email

The opening line of an email does more work than most senders realize. It signals formality, familiarity, and register before the reader has processed a single word of the actual message. A reader who opens with “Dear Mr. Smith” is a different reader than one who opens with “Hey Alex.” The rest of the email is interpreted through the frame the greeting set up.

For VAs and executive assistants writing on a client's behalf, the greeting matters twice as much. It is the first place a mismatch shows up. A client who always writes “Hi Alex,” whose reply suddenly opens with “Dear Mr. Chen,” signals to the recipient that either the client is being oddly formal or somebody else wrote the email. Neither reading helps the relationship.

The Three Categories of Professional Email Greetings

Every common email greeting falls into one of three categories. Knowing which one you are using tells you when it fits and when it does not:

Formal (keeps professional distance)

“Dear [Full Name],” “Dear Mr./Ms./Dr. [Last Name],” “To Whom It May Concern.” Fits legal correspondence, formal proposals, first-time contact in traditional industries (law, finance, medicine, academia), and any situation where warmth would be inappropriate. Sounds slightly stiff in modern professional email but is still standard in specific fields.

Semi-formal (professional but warm)

“Hello [Name],” “Hi [Full Name],” “Good morning [Name].” Fits most business email in tech, creative, and modern professional contexts, especially for first or early contact. Warmer than “Dear” without being casual. This is the safe middle ground for most professional situations.

Casual (familiar, ongoing relationship)

“Hi [First Name],” “Hey [Name],” “Morning!” or just starting with the recipient's name (“Alex,”). Fits ongoing conversations with people the client emails regularly, internal team members, and casual industries. Using a casual greeting with a first-time contact reads as presumptuous.

Which Greeting Fits Which Situation

The rule of thumb: match the greeting to the relationship and the industry, and let the incoming email guide you. If someone opened their email to you with “Dear” you likely want to reply with the same. If they opened with “Hi” you can match with “Hi” or one step warmer.

First contact in a traditional industry (law, finance, government, academia) → “Dear Mr./Ms. [Last Name],” or “Dear [Full Name],”
First contact in a modern industry (tech, creative, professional services) → “Hello [First Name],” or “Hi [First Name],”
Ongoing correspondence with a regular contact → Whatever they use, or one step warmer.
Senior person you are contacting for the first time → “Dear [Full Name]” or “Dear Mr./Ms. [Last Name]” regardless of industry.
Junior colleague or team member → First name alone, or “Hi [First Name].”
Group email to multiple people you know → “Hi all,” “Hi team,” or “Hi everyone.”
Cold outreach or first-touch sales → “Hello [First Name],” is safest. “Dear” sounds like a template. “Hi” can work in tech contexts but reads as presumptuous in traditional industries.

How to Match Your Client's Actual Greeting Style

This is where VAs get in trouble. The instinct is to open every email with the safest professional greeting (“Hi [Name],”) and stay consistent. The right move is to use whatever the client actually uses, which often varies by audience.

Practical steps to figure out and apply the client's real greeting pattern:

Read 15-20 of the client's real sent emails. Note the greeting on each one. Look for patterns.
Notice if the greeting varies by audience. A founder might open with “Hey” when writing to their team but switch to “Hello” for external contacts and “Dear” for legal or investor communication. Sort the audiences and note each pattern.
Look for the specific punctuation. “Hi Alex,” and “Hi Alex” without the comma are subtly different. Some clients start on a new line after the greeting; some run the greeting into the first sentence. Match exactly.
Note whether they use full name, first name, or nickname. A client who always writes “Hi Al” to a specific contact means that contact goes by Al, not Alex or Alexander. Getting this wrong signals immediately that you are not the client.
Document this in a written tone reference. For each client, write down: default greeting for external contacts, greeting for internal team, any specific-name mappings (Al for Alex, Bee for Beatrice, etc.), and any exceptions. This is one of the fastest ways to prevent common errors.
Use an [automated tone-matching tool](/tools/ai-client-tone-matcher) if manual tracking gets impractical. Replyf captures the greeting pattern from real sent emails and applies it to every draft, including audience-specific variations.

Greetings to Avoid (and Why)

These are the specific greeting patterns that consistently create problems in professional email, no matter which industry you are in:

“To Whom It May Concern.” Signals that the sender did not bother to find out who they were writing to. Even if you genuinely do not know the recipient's name, try “Hi there,” or “Hello,” or open with a role reference (“Hi Sales team,”) instead.
“Hey” in a formal industry. Fine for tech and creative. Wrong for law, finance, or government. If in doubt, drop to “Hi.”
“Dear Sir/Madam.” Once standard, now feels dated and impersonal. Only use if the recipient is genuinely unknown and the industry is traditional (some legal correspondence still calls for it).
Greetings that misgender or misname. “Dear Ms. Chen” when the recipient goes by they/them. “Dear Mr. Alex” when Alex is the first name. Always double-check the name, spelling, and pronoun before using formal salutations.
Multiple people addressed as “Guys.” “Hi guys,” excludes some recipients. Use “Hi all,” “Hi team,” or “Hi everyone.”
Overly enthusiastic openers. “Hi!!!” or “Hey there!” with multiple exclamation points reads as juvenile or trying too hard, even in casual industries.
No greeting at all in a first-contact email. Starting cold outreach with “Wanted to reach out about...” skips the courtesy of greeting. Fine for ongoing threads, wrong for first contact.

Special Cases: Multiple Recipients, Unknown Names, Uncertain Genders

A few situations that come up regularly in VA work and need specific approaches:

Multiple recipients where you know all names: “Hi Alex and Sarah,” or “Hello Alex, Sarah, and team.” Naming each person specifically feels warmer than a group greeting.
Multiple recipients where the group is defined: “Hi team,” “Hi all,” “Hi everyone.” These work for internal groups or when the recipients form a natural collective.
Unknown name at a known company: “Hi [Company] team,” or open with the role (“Hi Support team,” “Hi Sales,”). Better than “To Whom It May Concern” but only slightly.
Uncertain gender or pronouns: Skip honorifics entirely. “Dear [Full Name]” or “Hello [First Name]” avoids the Mr./Ms./Mx. question. If you are corresponding regularly, note their pronouns from their email signature or LinkedIn and use those going forward.
Cold email to a specific person you researched: Use their first name in modern industries, full name or last name with honorific in traditional industries. Do not use nicknames unless they use them publicly.
Reply to an email that opened casually: Match one step warmer. If they wrote “Hi Alex,” you can reply “Hi Sarah,” or just “Sarah,”. Escalating warmth is welcome; regressing (formal reply to casual opener) reads as cold.

Greetings by Time of Day

“Good morning,” and “Good afternoon,” have a specific use: they signal that you are aware of the time and treating the exchange as fresh. Two things to watch:

First, the time when the recipient reads the email is not always the same as when you send it. “Good morning” sent at 8am your time reads oddly if the recipient opens it at 8pm their time. If the audience spans time zones, prefer time-neutral greetings (“Hi,” “Hello”) unless you are sending scheduled email that will actually land in their morning.

Second, “Good morning” can read as slightly stilted in ongoing casual correspondence. It fits first contact of the day (“Good morning Alex, I wanted to follow up on...”) but becomes odd if used multiple times in the same thread. In back-and-forth conversation, drop to just the name or no greeting after the first message.

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FAQs about Professional Email Greetings: How to Open Client Emails the Right Way

Everything you need to know

What is the best professional email greeting?

For most modern professional contexts, 'Hello [Name],' or 'Hi [Name],' is the safe default. Warm without being casual, professional without being stiff. For more formal contexts (legal, finance, first contact in traditional industries), 'Dear [Full Name],' or 'Dear Mr./Ms. [Last Name],' remains appropriate. For ongoing casual working relationships, opening with just the recipient's first name works well.

How do you address someone in an email professionally?

Use their name. Get the spelling right. Match the honorific to what they use themselves (check their email signature or professional profile). For formal contexts use 'Dear Mr./Ms. [Last Name]' or 'Dear [Full Name]'. For most modern professional contexts, 'Hello [First Name]' or 'Hi [First Name]' works. Never use 'Dear Sir/Madam' for someone whose name you can find with a quick search.

Is 'Dear' still used in professional emails?

In some industries yes, in others no. 'Dear' remains standard in legal, financial, government, medical, and academic correspondence, especially for formal first contact. In tech, creative, and modern professional services, 'Dear' has largely been replaced by 'Hello' or 'Hi'. Match the industry norm. When in doubt for a first-contact email, 'Hello' is a safer neutral choice.

What is the best casual professional email greeting?

'Hi [First Name],' is the most common casual professional greeting. Warm without being unprofessional. 'Hey' works in tech and creative industries but can read as too casual in traditional ones. Opening with just the recipient's first name (no 'Hi' or 'Hello' before it) signals a close ongoing relationship and works well in established working exchanges.

How do I start an email when I don't know the recipient's name?

First, try to find the name. LinkedIn, company website, and the company's contact page usually surface the specific person. If you truly cannot find a name, use the role ('Hi Support team,' 'Hello Sales,') or a neutral collective ('Hi team,'). Avoid 'To Whom It May Concern' unless you're writing a formal legal or administrative letter; it signals you did not try to find out who you were writing to.

How do I address multiple recipients in a professional email?

If you know all their names and there are 2-3 people, name each: 'Hi Alex, Sarah, and Mike,'. For more people or an established group, use a collective: 'Hi team,' 'Hi all,' or 'Hi everyone,'. Avoid 'Hi guys' which excludes some recipients. For formal group emails, 'Dear [Company] team,' or the full names with honorifics works.

Should I use 'Hi' or 'Hello' in professional emails?

Both are professional. 'Hi' is slightly more casual and warmer; 'Hello' is slightly more formal and neutral. For a first-contact email in a mixed context, 'Hello' is safer. For ongoing correspondence with someone you email regularly, 'Hi' is more natural. Match what the recipient uses when you reply to their email.

Is 'Hey' acceptable in professional email?

Depends on the industry and relationship. 'Hey' works fine for internal team communication, casual industries (tech, creative), and ongoing exchanges with people you know well. It reads as too casual in traditional industries (law, finance, government) and for first-contact emails. When in doubt, use 'Hi' instead; it works in more contexts.

How does a virtual assistant match the client's greeting style in emails?

Read 15-20 of the client's real sent emails and note the specific greeting they use, including punctuation and audience-specific variations. Write down what they use for external contacts vs. team vs. specific relationships. Apply that exact pattern when drafting on their behalf. A [tone-matching tool](/tools/ai-client-tone-matcher) can automate this by learning the pattern from the client's sent emails and applying it to every draft.

Can I skip the greeting in an ongoing email thread?

In casual ongoing threads with someone you email daily, yes. Many established working relationships drop the greeting entirely by the third or fourth message in a thread. For threads that involve multiple people, formal contexts, or a shift in topic, keep the greeting to signal you are starting a specific new exchange.