The etiquette of email subject lines

Depending on what year it is, and what source you’re looking at, it is reported that more than 3 billion emails are exchanged each day. 

Because subject lines are like book titles, and we know the old “don’t judge a book by its cover” expression, emails are judged and, therefore, opened based on who sends them and the subject line. 

As a result, sending interesting, catchy and informative subject lines are critical; after all, it is the first impression for that day of you, your brand, your product or service and, absolutely, your connection.

Here’s a timely to-do list for subject-line success:

Do use a subject line. Blank subject lines are like calling someone and not leaving a message.

Do be honest and not misleading. Clickbait gets you sent to email jail, aka spam, junk or, worse yet, the blocked email list. 

Do focus on the subject line being 50 characters or less, ideally.

Do capitalize each word of the subject line, as this is similar to a book title. Don’t capitalize every letter in each of the words, as that is screaming at someone.

Do check your subscribers to ensure whether or not your email subject line will be translated into another language, and if so, ensure you are not being inadvertently offensive or inappropriate.

Do consider making subject lines based on segmentation of your teams, clients/customer, targeted prospects and others, and make the subject line relate to the area, segment and type of reader.

Do skip special characters (such as asterisks, at signs, pound signs, exclamation marks) and other “expressions,” since many service providers see them as an attempt to phish or spam. 

Do go ahead and use emojis, occasionally, as they are not considered special characters. (This is very new to most platforms).

Do change the subject line on a reply if something is being added, or omitted, in the response.

Do send an email of appreciation occasionally with a subject line of “Thank You for Being a Client/Subscriber/Top Client/Top Engager” with some statistics about your engagement with them. People like to be a part of successful practices.

With intriguing and true subject lines, watch your opportunity for opens to increase and for unsubscribes, deletes and blocks to decrease. After all, with billions of emails being sent each day, the subject line is your “book’s cover. You want yours opened and you want it read. 

Debbie Lundberg is the founder, and CEO, of the Florida-based firm, Presenting Powerfully. She is a 12-time published author, certified virtual presenter, certified life coach, certified leadership coach and certified image consultant. She co-hosts the Business Of Life Master Class podcast. Her book, Remote Work Rockstar, has become a guide for working and leading virtually.

You May Also Like
How to receive feedback

Dear Debbie: A few months ago, you shared how to be a sponsor and speak up. I love it and, yet, sometimes when I get feedback, I get embarrassed and

Read More
The summer burnout

Summer is hot and so is burnout. By this time of the year, the heat, and the mood, in the office, and outside, feels like it would melt gold which,

Read More
Initiating buyer focused conversations

If you’re in sales and new business development, you know that your job consists of three primary functions: selling (including presenting your solution to a prospective customer or client, then

Read More
Jim Marshall
How to beat the ‘Summer Slowdown’

So, here we are in August – what some people refer to as the “dog days of summer.” Temperatures and humidity are through the roof, many of your clients, customers

Read More
Jim Marshall
Other Posts
Winning in golf and sales

(Reader Alert: This article is about golf; if you are not a fan or a participant – or have little patience for those who are – please feel free to

Read More
Jim Marshall
When a STAR is born

As a recruiter, my first go-to candidate is someone who has depth, personality and has navigated some real-life experiences. Many times though, they have little-to-no college experience. This begs the

Read More
Experts Say Despite Tightening Underwriting, Plenty of Funding Options Are Still Available

While numerous economic indicators continue to plunge, lenders have been tightening underwriting guidelines to reduce their risk exposure.  This shouldn’t surprise anyone considering the fact that we all can see

Read More
business credit
Prepping for the fall (sales) this summer

The month of June signifies different things to different people: weddings, graduations, Father’s Day, hurricane season, the Summer Solstice, etc. The kids are out of school, summer vacations are being

Read More
Jim Marshall