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Your Introduction Email Subject Line is Critical

Are you losing new customers through your introduction email subject line before you’ve even started?

subject lines“Hello, sailor. Can I buy you a drink?”

“Do you come here often?”

Of course these silly pick-up lines are good for a laugh, but do you know how to really introduce yourself to new prospects? When you’re about to launch a relationship with new customers, email subject lines are important and the subject line for the introduction email is the first time you get to try to impress them.

No matter how brilliant your email conversion rate and audience development strategy was to get those email addresses, if they don’t open this very first email, the relationship is over before it’s begun.

When I pondered how to write a killer subject line for introduction emails, I remembered a Mequoda blog post we wrote about the MailChimp Subject Line Researcher tool, which is available when you sign up for a free account.

This tool lets you create the perfect subject lines for your introduction emails by entering common words you might use, and then viewing the ranking MailChimp gives them, based on analysis of the thousands of emails they send for clients.

These words all earn the maximum score of five stars, and you can combine them in many different ways when you write a subject line for any introduction email.

available for download

catch free download (note: “download” by itself earned only one star)



Introducing our new (“introducing” alone earned only four stars)

[Brand] report ready

Report from

Page (“Pages“ earned 4 stars)

Welcome to

Welcome letter

Welcome from

Welcome newsletter


Hello from

Hello from [brand]

Plus newsletter (“plus” gets 4 stars, but all other combinations using “plus” were dead losers)

Help for (“helps you” earned 4 stars)

You registered

Your purchase


Greetings from

Here is the

Thanks for coming / inquiring / booking / being / attending / joining / stopping / visiting / checking


For subscribing

Thanks you

Interestingly, “experts” earned only three stars, and “expert” only two, while “appreciate” and  “appreciated” earned no stars at all. Offer your new buddies a special report, but don’t waste your characters in a subject line for introduction email in bragging about your expert special report, or telling the new customer how much your appreciate her.

Examples of a subject line for introduction email

Try all of these combinations when you write a subject line for introduction email, whether B2B or B2C:

Welcome to Gardens Daily! Thanks for subscribing!

Hello from Mequoda, welcome newsletter enclosed

Thanks for subscribing, welcome from Mequoda

Welcome to Mequoda, help for publishers inside

Greetings from Gardens Daily, your welcome newsletter enclosed

As with any subject line, 45-51 characters are all that some email clients will show to your recipients, and generally speaking, shorter subject lines deliver higher open and click-through rates. The above examples of a subject line for introduction email are in that range, except for the last one.

Also, your subject line for introduction email should avoid three innocent little words, according to MailChimp’s research:


Percent off


Introduction email tips

For the body of your introduction email, you should remind your new friends how you acquired their email address, and tell them more about your content, the publishing schedule you follow, and what to expect from you as the relationship blossoms. Don’t try to sell them something in this email, but do offer something free, such as a special report that caters to their specific interests. And definitely offer links to interesting content around your website, because the more time they spend there, and the sooner they do it, the more likely they are to become buyers.

Also, make sure it’s self-evident and easy to unsubscribe, in order to allay any suspicions and keep their trust.

Do you have any other ideas that help you get introduction emails opened? Let me know!

This article was originally published in 2012 and is updated frequently.

Posted in Audience Development Strategy

Tagged with , , , , , , , , , , , , , , , , , .

One thought on “Your Introduction Email Subject Line is Critical

  1. Danny says:

    Awesome tip. I’ve never heard of mailchimp but I’m glad I know now!

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