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Writer's pictureNatasha

How to Write a Good E-mail Subject Line: 9 Ways to Boost Your Open Rate

Updated: Dec 10, 2022

Ready to add some writing skills to your marketing tool bag? If you're not learning Ad Copy and how to write, you're not going to get where you want to be. Writing is the KEY that makes everything else, work.


So, here's my list of 9 ways you can boost your open rate.

how to boost your open rate


1. Shorter is Better

Naturally, it shouldn't come as a surprise that your subject line ought to be succinct and direct. You have even less real estate to deal with as more people access their email on mobile devices.


In order for your email subject lines to be read on various email systems and devices, try to keep them under 50 characters. If you're unsure, send a test email to yourself and check how it appears on various screen sizes.


2. Curiosity Inspires

Making a reader curious about the contents of an email is one of the easiest strategies for getting it opened. You don't have to go full clickbait, though; you may pique interest without saying "you'll never believe."


Instead, attempt to pique readers' interest by making generalisations about the email's content without giving anything away. A surprise gift for you! would make a good subject line to try if you want to grab readers' attention and stand out in their inbox.


3. Your Offer

Don't let receivers delete your email before they even view it if you've taken the time to make a good offer. Don't be afraid to include a worthwhile or entertaining book straight in the subject line of your email.


Try using a subject line like "save 20% on your first month" or "free e-book for entrepreneurs" to entice them to open the message and take advantage of your offer.


Avoid putting the promo right from the start to avoid landing in the promo folder.

Ex: Natasha, you can save 20%


You probably won’t be able to give everything away in the subject line, but that’s just another great way to create curiosity in your readers.


4. FOMO: Fear of Missing Out

Don't let receivers delete your email before they even view it if you've taken the time to make a good offer. Don't be afraid to include a worthwhile or entertaining book straight in the subject line of your email.


Try using a subject line like "save 20% on your first month" or "free e-book for entrepreneurs" to entice them to open the message and take advantage of your offer.


5. Focus on Action

Since you're attempting to elicit a certain action from the reader in both situations, you can compare a subject line to a CTA. Action is therefore one of the most crucial components of any CTA.


By concentrating on activity, a reader might imagine oneself participating in it, which creates excitement.


Based on your knowledge of your readership, come up with ideas on how to add action to your subject line. If you can begin your subject line with a verb, such as "Cook dinner tonight," it will be very effective.


6. Question?

It’s only natural to get interested when a subject line asks a question—especially when it leaves you wanting to know more, or second guessing your answer.


Test out questions that aren’t easy to answer right away, like “are you making these web design mistakes?” or “could your stock photos be hurting your brand?.” Instead of being able to answer quickly in their head and moving on, readers will be forced to stop, think, and (hopefully) click.


7. Delight Readers

Anything you can do to improve the experience will help you stand out in a world when readers open their inboxes to discover hundreds of messages with subject lines that are nearly identical to one another every single day.


By using surprise and delight in your subject line, you may entice readers to interact with and open your emails. Try include a pun or an emoji in place of a word in your subject line (you can copy and paste them from a site like GetEmoji).


Which would you choose to click on—another uninteresting email or one that brightens your inbox?


8. Localize

If you know something that ties your audience together, like a geographic area, tailor your subject line to them. Anything that can make your audience feel like you’re talking directly to them will increase engagement.


If you’re mailing to an audience that lives mostly in Montreal, for instance, you might include a subject line that references their location, like “Montrealers: get your first order half off.” You could also reference local weather, sports teams, or cultural touchpoints in a certain area.


You can still customise content based on what you do know about readers even if you don't know where your audience is or they aren't in the same location. For instance, you could send an email with the subject line, "The tips you need to keep your next design feeling fresh," to a list of graphic artists.


9. Test, Test, Test

Of course, what works for one brand may not, in the end, work for another. Testing your own subject lines to develop winning formulas for you is therefore the most crucial stage.


Split your audience in two and send TWO slightly different versions of the same e-mail and zoom in on works best.


There it is! If you'd like more help and have an established e-comm with low open rates, book a call, let's chat!


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