Email Marketing Best Times to Send Email

Published on February 5th, 2016 | by Amanda Day

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The Surprisingly Best Times to Send Your Email Marketing Campaigns

Long-standing advice amongst email marketers when asked, “When is the best time to send email?” has always been, “Tuesday through Thursday morning, between 8 and 10am.” Sure, it’s common knowledge throughout the industry that people tend to open their email in the mornings, but “the times, they are a-changin’,” as Bob Dylan would say. Let’s visit some current email marketing trends that are creating shifts in open rates, and how they’ll impact your next email send.

AdWeek Infographic

AdWeek Infographic based on Experian study

A 2012 Experian email marketing benchmark study across all industries found that recipients are surprisingly active late at night. Unique open rates averaged 21.7% from 8pm to 11:59pm and 17.6% for 12am to 4am. Moreover, this late night group was more likely to click-through, with open rates of 4.2% and 3.2%, respectively. These night owls also had the highest click through rates for all times of day. Revenue per email was also the highest in the 8pm to 11:59pm group. Additionally, in 2015, Experian’s quarterly email marketing benchmark release showed that 54% of emails are now opened on a mobile device, and a 2014 ExactTarget mobile behavior report found mobile activity peaks between 9pm to 12am. With consumers becoming more and more active on their mobile devices, especially outside of standard nine to five working hours spent at an office desktop, testing sends outside the traditional morning hours is essential.

As for which day of the week performed best, emails sent on Mondays had the highest ROI, but emails sent on Friday had a higher click through rate. Ironically, Saturday and Sunday had the lowest volume rates, but the highest open and click through rates in the study. So even though the weekend was not the most popular time to send emails, those who opened were much more likely to engage with it and click through or purchase.

Based on these findings, you might want to experiment with sending your emails at unconventional times – such as 11pm or 6pm and on the weekend– to see if it yields better results.

Weekend Warriors

Fewer promotional emails are sent on the weekends. This has created an opportunity for some businesses to scoop up some email love when there is less competition.

Experian’s email marketing study found that recipients responded more to promotional emails they received on the weekends – when the send volume was the lowest. The unique open rate for Saturday and Sunday was 17.8% for both days, the highest percentages of the week.

Email data from Harland Clarke also supported this finding in their recent study. Although 26.9% of emails were sent on Wednesdays, recipients viewed only 15.6% of those emails, whereas Saturday (a day when only 5.5% of emails were sent), they viewed 32.5%.

Before you change all your email launches to Saturday and Sunday, we recommend you test it first. (Remember that open rates on these days are still lower.) Try splitting your list in half and send the same email to group A on Sunday then group B on Monday or Tuesday. Repeat this a few times to see where you get better results.

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Mobile Matters

The same study by Experian we touched upon earlier found that not only are 54% of all emails viewed on a mobile device, but this percentage is on the rise, growing two percent between June and September 2015. Because mobile click through rates are lower, you want to be sure your call to action is clear and direct, and that your links are easy to spot and click (no matter what time of day you’re sending).

Harland Clarke’s study also found that the email open rates depended on the device the recipient is using. They found that tablet users, for example, were more like to open emails outside of business hours (from 5pm to 8am), while desktop users were more likely to open during business hours. Tablet users were the most active from 8 to 9pm, while desktop users and smartphone users were most active between 3 and 4pm.

Finally, when considering the importance of mobile in your email sends, remember that if your customers can’t read your emails, they’re not likely to continue to interact with them, affecting your future campaigns. Litmus found that by testing a non-responsive versus responsive email design, they were able to increase click-throughs by 130%.

So consider your audience in your email marketing. Try sending a split test to half of your list in the morning during work hours and the other half at 7 or 8pm and note any differences. Be sure your emails (and landing pages) are mobile-friendly.

Timing Isn’t Everything

If you’re noticing a dip in your open rates, maybe other factors are contributing to the decline. Here are some additional email marketing tips to help with your open and click through rates:

1.    Test your email to make sure it’s rendering properly in multiple browsers and email service providers (Email on Acid offers an easy way to do this if you want to save some time.)
2.    Review your email list. How old is it? Are there emails that should be removed? How can you grow your email list effectively? Here are some tips for good organic email list growth: 10 Steps to Build Your Email List the Right Way
3.    Are you effectively rocking your subject line? The subject line is your one brief opportunity to get someone to open your email. Be sure you know the best practices when creating this magic line. Check out these helpful tips on creating your subject line.
4.    Frequency. Are you sending too often? Be sure to play it cool and segment your lists so you aren’t bombarding your recipients with unwanted email (or, dare we say spam!)

So when is the best time to send email? As you can see, there is no one right answer. If you’re ready to see some improvements, start by doing some simple email split tests and see which times your recipients respond to best.

Don’t Have a VerticalResponse Account Yet?

It’s easy to use and free to get started. Sign up and start sending emails today.

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Editor’s Note: This post was originally published in November 2013 and has been revamped and updated for accuracy and relevance.

© 2016, Amanda Day. All rights reserved.

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About the Author

Amanda Day

is a contributing author for VerticalResponse.



14 Responses to The Surprisingly Best Times to Send Your Email Marketing Campaigns

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  4. Kiersten says:

    awesome article!

  5. Paradise4 says:

    You mentioned Litmus and Email on Acid. Are there any other service providers who would do testing prior to sending the emails?

  6. Eric Brickley says:

    Am I missing something? In paragraph 3 you wrote,

    “Ironically, Saturday and Sunday had the lowest volume rates, but the highest open and click through rates in the study”.

    5 Paragraphs later you wrote

    “Before you change all your email launches to Saturday and Sunday, we recommend you test it first. (Remember that open rates on these days are still lower.)”

    Thanks for the research!

  7. michael says:

    Hi everyone I am just getting started, I have never have done an E-mail campaign so I am learning. I found the article quite interesting so my question is why is it important to know when people open their E-mail? My target market will be to men with all of their issues, concerns and triumphs. As a health coach I want to meet their needs and wants.
    thanks Mike

  8. Ann Romano says:

    I would also like to know whether you have distinct results for B2B campaigns.

  9. Interesting information! For B2C kind of products and services campaigning could be effective during night and weekends as people are at ease. Can you share any information on B2B kind of campaigns.

  10. Milind Kher says:

    Wow! That really is a revelation. Will have to surely keep this in mind. Thanks so much for posting!

  11. Conrad says:

    Some great thoughts! We’re definitely noticing the slow but steady increase of mobile users, who also click (or tap) less. Here in Aus we’ve recently had summer time-zone changes which doesn’t affect all states. Because of this some readers receive emails earlier than usual, but it has had a positive effect! But as always – defer to the 3 T’s of eDMs Test, Test, and Test again.

  12. Being in the swimming pool and hot tub business, with most sales being online, we have found that sending out our B2C emails on Friday nights are best for us, because that is when most people are at home and are prone to needing things for their pool or hot tub. So I kind of agree with all of the results listed in the survey above. However when we send out a B2B campaign for our marketing division, we find sending out on Monday’s or Tuesday’s work better, as more people are opening up their emails at work. Also be very aware that Open Rates and Click Thru Rates are no longer as reliable as they used to be – depending on the device people are viewing your email on (PC vs. Tablet vs. IPad, vs, Iphone, etc.). The Click-tracking on many mobile devices is sometimes not reported back accurately to the sender. As the article above mentions, we always use Email On Acid to test our emails before each send – and then make corrections accordingly. I would HIGHLY recommend that service. It checks for broken links, does Spam testing, and most importantly – it gives you actual screen shots of how your email renders in about 35 different devices using multiple browsers. That is a GREAT feature. Using Vertical Response combined with Email On Acid will definitely help your bottom line on each email send.

  13. Pamela Williams says:

    Are the study results the same for service industries? We’re willing to experiment with varying the days and times we send our campaigns, but want to know about best times for service/non-profit industries to send informational versus sales campaigns.

  14. Enjoyed the article. Since we are in the central time zone we send our emails out at 4am on Tuesdays so they are available for the early risers on the East coast. We have been excited to see a 28%-32% open rate, although our click thru rate is considerably lower. Would like to figure out why the click thru rate is significantly lower than the opening rate. I must say though, Vertical Response has been a tremendous boon to our non-profit.

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