Despite the growth and prominence of mobile messengers and chat apps, e-mail is an integral part of daily online life. In 2023, the number of global e-mail users amounted to 4.37 billion and is set to grow to 4.89 billion users in 2027.
Global e-mail audiences
In 2023, approximately 347 billion e-mails were sent and received every day worldwide. This figure is projected to increase to over 408 billion daily e-mails in 2027. As of July 2022, Apple Mail Privacy accounted for over half of the e-mail opens, while mobile use of e-mails saw a significant decrease in their market shares. Apple MPP e-mail app was the most popular e-mail client, accounting for 55 percent of e-mail opens. Gmail, the free e-mail service owned by Google, was ranked second with a 31 percent open share.
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. In 2023, 25 percent of fraud reports in the United States related to cases in which victims were contacted via e-mail.
Number of e-mail users worldwide from 2018 to 2027
(in millions)
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The Radicati Group. (November 1, 2023). Number of e-mail users worldwide from 2018 to 2027 (in millions) [Graph]. In Statista. Retrieved December 11, 2024, from https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst
The Radicati Group. "Number of e-mail users worldwide from 2018 to 2027 (in millions)." Chart. November 1, 2023. Statista. Accessed December 11, 2024. https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst
The Radicati Group. (2023). Number of e-mail users worldwide from 2018 to 2027 (in millions). Statista. Statista Inc.. Accessed: December 11, 2024. https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst
The Radicati Group. "Number of E-mail Users Worldwide from 2018 to 2027 (in Millions)." Statista, Statista Inc., 1 Nov 2023, https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst
The Radicati Group, Number of e-mail users worldwide from 2018 to 2027 (in millions) Statista, https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst (last visited December 11, 2024)
Number of e-mail users worldwide from 2018 to 2027 (in millions) [Graph], The Radicati Group, November 1, 2023. [Online]. Available: https://www.statista.com/statistics/255080/number-of-e-mail-users-worldwide/?utm_campaign=wc-2020-09-state_of_email_fall_edition-ebook-emailfirst%3Futm_campaign%3Dwc-2020-09-state_of_email_fall_edition-ebook-emailfirst