Despite the growth and prominence of mobile messengers and chat apps, e-mail is an integral part of daily online life. In 2022, the number of global e-mail users amounted to 4.26 billion and is set to grow to 4.73 billion users in 2026.
Global e-mail audiences
In 2020, approximately 306 billion e-mails were sent and received every day worldwide. This figure is projected to increase to over 376 billion daily e-mails in 2025. Recent industry data shows that the trend towards mobile also holds true for e-mail: in December 2018, 43 percent of e-mail opens were via mobile. Desktop e-mail clients’ open share had declined to 18 percent, and webmail accounted for 39 percent of opens. Based on the dominance of mobile, it is no surprise that the iPhone e-mail app was the most popular e-mail client, accounting for 29 percent of e-mail opens. Gmail was ranked second with a 27 percent open share. Gmail is a free e-mail service owned by Google, and the company reported 1.5 billion active Gmail users worldwide in October 2018.
Malicious mail
Many online users use e-mails for website and newsletter signups and brace themselves for the inevitable flood of spam and marketing communications. Whereas most unwanted e-mails are annoying yet ultimately benign, consumers are right to be wary of malicious e-mail that can be used to compromise their digital accounts and devices. Overall, consumers are pretty aware of the dangers of unknown e-mails and according to a global survey in February 2019, 45 percent of internet users reported that they avoided opening e-mails from unknown e-mail addresses.
Number of e-mail users worldwide from 2017 to 2026
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Number of users in millions
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The Radicati Group. (November 22, 2022). Number of e-mail users worldwide from 2017 to 2026 (in millions) [Graph]. In Statista. Retrieved July 27, 2024, from https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email
The Radicati Group. "Number of e-mail users worldwide from 2017 to 2026 (in millions)." Chart. November 22, 2022. Statista. Accessed July 27, 2024. https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email
The Radicati Group. (2022). Number of e-mail users worldwide from 2017 to 2026 (in millions). Statista. Statista Inc.. Accessed: July 27, 2024. https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email
The Radicati Group. "Number of E-mail Users Worldwide from 2017 to 2026 (in Millions)." Statista, Statista Inc., 22 Nov 2022, https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email
The Radicati Group, Number of e-mail users worldwide from 2017 to 2026 (in millions) Statista, https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email (last visited July 27, 2024)
Number of e-mail users worldwide from 2017 to 2026 (in millions) [Graph], The Radicati Group, November 22, 2022. [Online]. Available: https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?hubs_content=blog.hubspot.com%252Fmarketing%252Fbenefits-of-email-marketing&hubs_content-cta=73%2525%2520of%2520millennials%2520prefer%2520communications%2520from%2520businesses%2520to%2520come%2520via%2520email