90 Interesting Facts About Email | How Many Emails are Sent Per Day?

90 Interesting Facts About Email | How Many Emails are Sent Per Day?



Email marketing has spanned the various stages of digital marketing evolution and is still going stronger than ever. It is an excellent communication channel when used strategically as part of a larger digital campaign. So just how big has email become? Here are a few Facts About Email and Email Statistics including how many emails are sent per day and much more that should convince you of the importance of this age-old digital technology.

Please note that some of these facts about email are easier to find than others. These email statistics come from news reports and are not necessarily scientific tallies. Basically, this is the best I can find and I don’t guarantee anything to be 100% accurate.

Facts About Email and Email Statistics

How many emails are sent per day?

269 billion emails

Last updated January 2017


How many emails are sent each minute?

149,513 emails

Last updated 8/9/17


Average number of fake emails sent daily:

3.4 billion

Last updated 6/11/19


Year first email system was developed:

1971


Average number of emails an office worker receives each day:

121 emails per day

Last updated 2/26/15


Clickthrough rate for email sent in North America:

3.1%

Last updated 1/26/17


Open rate for email sent in North America:

34.1%

Last updated 1/26/17


How many people use email?

4.3 billion users

Last updated 1/23/15


Increase in open rate when an email subject line is personalized:

17%

Last updated 5/14/18


Increase in click rate when an email subject line is personalized:

29.6%

Last updated 5/14/18


Mobile click-to-open rate for U.S. marketing email:

13.7%

Last updated 12/21/15


Percentage of Americans that check their email in the bathroom:

42%

Last updated 8/27/15


Percentage of Americans that check their email while driving:

18%

Last updated 8/27/15


Percentage of Americans that check their email while in bed:

50%

Last updated 8/27/15


Desktop click-to-open rate for U.S. marketing email:

18%

Last updated 12/21/15


Average open rate for retail emails:

20.96%

Last updated 2/1/17


Average open rate for political emails:

22.23%

Last updated 2/1/17


Average open rate for professional services emails:

20.89%

Last updated 2/1/17


Average click rate for retail emails:

2.5%

Last updated 2/1/17


Average click rate for political emails:

2.17%

Last updated 2/1/17


Average click rate for professional services emails:

2.47%

Last updated 2/1/17


Average email clickthrough rates on desktop computers:

13.3%

Last updated 12/1/16


Average email clickthrough rates on mobile devices:

12.7%

Last updated 12/1/16


Top reason why US Internet users unsubscribe from emails:

“I get too many emails in general”

Last updated 2/13/17


Projected number of enterprise email users in China in 2017:

135 million


Percentage of emails that are opened on mobile devices:

55.6%

Last updated 5/22/18


Percentage of opened emails that are opened on a desktop computer:

16%

Last updated 10/24/17


Percentage of opened emails that are opened on webmail:

28%

Last updated 10/24/17


Top email client:

Apple iPhone email client (29%)

Last updated 7/13/18


Second most popular email client:

Gmail (27%)

Last updated 7/13/18


Top spam content category of 2017:

Healthcare


Second highest spam content category of 2017:

Malware


Percentage of B2B email that is opened on desktop computers:

70%

Last updated 9/6/16


Percentage of US marketing email that makes it to a recipient’s inbox:

69%

Last updated 8/12/16


Research shows that emails with 20 or fewer lines of text and three or fewer images result in the most number of click-throughs.


Subject line length that see the highest read rate:

61-70 characters

Last updated 4/29/15


Top day for email volume in 2015:

Cyber Monday


Percentage of commercial emails sent by brands in 2015 that were deleted without being read:

9%


Type of Brands that had their emails deleted most without being read in 2015:

Office Supply Companies


Vertical with the highest email read rate in 2015:

Utilities


Verticals with the lowest email read rate in 2015:

Business/marketing and social/dating companies


Company with most email unsubscribe requests in 2015 (according to Unroll.me):

StumbleUpon


Company that sent the most email per user in 2015 (according to Unroll.me):

Groupon (avg 388 emails sent per user)


Percentage of email marketers that look at opens and clicks for each send:

75%

Last updated 2/16/16


Percentage of email marketers that don’t manage their email lists:

24%

Last updated 2/16/16


Percentage of email marketers that don’t target their email campaigns:

42%

Last updated 2/16/16


Percentage of email marketers that personalize their email:

58%

Last updated 2/16/16


Top “urgent” keyword in an email subject line (based on increase in read rate):

“still time”

Last updated 4/29/15


Percentage of mobile email recipients that read an email based on subject line:

33%

Last updated 1/8/15


Open rate for emails from brands a recipient purchases products from online often:

69.8%

Last updated 8/15/13


Open rate for emails from brands a recipient purchases products from in-store often:

69.7%

Last updated 8/15/13


Percentage of users that made a purchase as a result of a promotional email they receive on their mobile device:

6.1%

Last updated 8/15/13


Percentage of consumers whose online spending is influenced by email:

13.5%

Last updated 10/30/13


Increase in email opens from segmentation:

30%

Last updated 8/29/13


Top email component that marketers personalize:

Subject Line

Last updated 1/11/16


Percentage of opened emails that are opened on a smartphone:

25%

Last updated 7/30/13


Percentage of opened emails that are opened on a tablet:

7.3%

Last updated 7/30/13


Best time for email opens on a desktop computer:

9am-4pm

Last updated 7/30/13


Best time for email opens on a smartphone:

10am-5pm

Last updated 7/30/13


Best time for email opens on a tablet:

3pm-9pm

Last updated 7/30/13


Best time for email opens across all devices:

8pm-12am

Last updated 3/4/14


Most effective day of the week to send an email (based on open rates):

Saturday

Last updated 3/4/14


Most effective day of the week to send an email (based on click rates):

Sunday

Last updated 3/4/14


Least effective day of the week to send an email (based on open rates):

Friday

Last updated 3/4/14


Least effective day(s) of the week to send an email (based on click rates):

Wednesday/Friday

Last updated 3/4/14


Percentage of email sent that is spam:

49.7%

Last updated 7/17/15


Increase in click-to-open rates for email that is mobile optimized:

24% increase

Last updated 3/4/16


Increase in click-to-open rates for email that is designed responsively:

55% increase on mobile device; 23% on desktop

Last updated 3/4/16


Percentage of email that is deleted if it isn’t mobile optimized:

75%

Last updated 3/4/16


Percentage of email marketers that use responsive design in all of their email:

17%

Last updated 3/4/16


Most popular mobile device for email opens:

iPhone (w/33% of all opens)

Last updated 2/16/16


Percentage of emails that include malicious attachments:

2.3%

Last updated 8/9/13


Top country where spam is generated:

United States

Last updated 10/18/13


Percentage of spam generated in the United States:

14.6%

Last updated 10/18/13


Top country where spam is generated (per capita):

Belarus

Last updated 10/18/13


Percentage of marketers that use email in their campaigns:

77%

Last updated 10/4/13


Percentage of marketers that use popup windows to encourage email signups:

45%

Last updated 2/5/14


Percentage of mobile email recipients that read an email based on familiarity of sender name:

24.1%

Last updated 8/15/13


Percentage of email sent in 2015 that were triggered emails:

2.3%


Percentage of brands that send welcome emails:

70%

Last updated 7/18/16


Open rate of cart abandonment emails:

29.9%

Last updated 7/18/16


Clickthrough rate of cart abandonment emails:

15%

Last updated 7/18/16


Percentage of US companies that believe email marketing drives customer acquisition:

81%

Last updated 6/7/16


Percentage of US companies that believe email marketing drives customer retention:

80%

Last updated 6/7/16


Percentage of opened emails that are looked at for 8 seconds or more:

53%

Last updated 7/19/16


Mean unsubscribe rate for brand emails sent in 2015:

0.127%


Percentage of US marketers who are personalizing email:

67%

Last updated 6/14/16


Percentage of US consumers that prefer email to direct mail from brands:

70%

Last updated 3/30/16


Percentage of American white-collar workers that admit to checking work email while on vacation:

79%

Last updated 1/4/17


Percentage of European white-collar workers that admit to checking work email while on vacation:

61%

Last updated 1/4/17


Average open rate for an email in China:

10.46%

Last updated 2016


Average clickthrough rate for an email in China:

2.37%

Last updated 2016


Average bounce rate for an email in China:

18.61%

Last updated 2016