Email Etiquette: When to Use Comma or Colon

 

If you’ve ever wondered whether to use a comma or a colon after an email greeting, you’re not alone! Let’s clear up the confusion with this quick, practical guide.

 
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Comma After "Dear" – Your Go-To for Everyday Emails

When writing a business email that starts with "Dear + Name," a comma is definitely needed. While it is polite and professional, it comes across as more formal.

So, it’s ok to use this the first time you email someone, but if it’s someone you know or that you’ve been emailing back and forth frequently, using “Hi + Name” is more natural.

Examples:

  • Dear Tannia, I hope this email finds you well.

  • Dear Mr. Gupta, Thank you for your generous contribution to our campaign.

Comma After "Hi" or "Hello" – The Friendly Approach

Using a comma after "Hi + Name" is how most of us communicate in the American workplace. It’s casual, friendly, and fits right in with today’s email culture.

Examples:

  • Hi Christos, I’m reaching out to confirm our meeting tomorrow at 8 a.m.

  • Hello Ms. Suárez, It was great to meet you yesterday at the conference.

Colon for Formal Emails – Keep It Professional

When formality is required, especially when writing to someone you don’t know well or in a very professional setting, use a colon after "Dear."

Examples:

  • Dear Professor Chen: Thank you for your interest in joining our team.

  • Dear Valued Customer: I regret to inform you that your service has been canceled.

Bonus Tip: Capitalize the First Word After Your Greeting

It’s a small detail, but it makes a big difference. Always capitalize the first word after your greeting to keep your email looking polished and professional.

Correct:

  • Hi Erin,
    Our mutual friend, Silvia, recommended I get in touch with you.

Incorrect:

  • Hi Erin,
    our mutual friend, Silvia, recommended I get in touch with you.

Mastering these small but important email rules is just one step toward crafting professional emails that get results.

Keep Learning

Don’t stop here—learn 20 email expressions to ask for clarification. Click here to dive in!

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