Photo by Tim Morgan
Email has been a fundamental part of daily communication for decades, and it continues to evolve as the internet, smartphones, and cybersecurity threats reshape how we use it. Below is an updated, source-backed list of the most interesting email facts and statistics I could verify with recent reporting and industry research.
Here is a list of email service providers.
Facts About Email and Email Statistics (2026)
How Many Emails Are Sent Per Day?
- Total emails sent per day (2024):
361.6 billion
Last updated: Radicati (2024–2028 forecast) - Total emails sent per day (2025):
376.4 billion
Last updated: Radicati (2024–2028 forecast) - Total emails sent per day (2026):
392.5 billion
Last updated: Radicati (2024–2028 forecast) - Total emails sent per day (2027):
408.2 billion
Last updated: Radicati (2024–2028 forecast) - Total emails sent per day (2028):
424.2 billion
Last updated: Radicati (2024–2028 forecast) - Emails sent per hour (2024):
~15.07 billion per hour (based on 361.6B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per hour (2025):
~15.68 billion per hour (based on 376.4B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per hour (2026):
~16.35 billion per hour (based on 392.5B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per hour (2027):
~17.01 billion per hour (based on 408.2B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per hour (2028):
~17.68 billion per hour (based on 424.2B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per minute (2024):
~251.1 million per minute (based on 361.6B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per minute (2025):
~261.4 million per minute (based on 376.4B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per minute (2026):
~272.6 million per minute (based on 392.5B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per minute (2027):
~283.5 million per minute (based on 408.2B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per minute (2028):
~294.6 million per minute (based on 424.2B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per second (2024):
~4.19 million per second (based on 361.6B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per second (2025):
~4.36 million per second (based on 376.4B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per second (2026):
~4.54 million per second (based on 392.5B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per second (2027):
~4.72 million per second (based on 408.2B/day)
Last updated: Calculated from Radicati daily estimate - Emails sent per second (2028):
~4.91 million per second (based on 424.2B/day)
Last updated: Calculated from Radicati daily estimate - Growth in daily email volume from 2024 to 2025:
~4.09% (361.6B → 376.4B)
Last updated: Calculated from Radicati daily estimate - Growth in daily email volume from 2025 to 2026:
~4.28% (376.4B → 392.5B)
Last updated: Calculated from Radicati daily estimate - Growth in daily email volume from 2026 to 2027:
~4.00% (392.5B → 408.2B)
Last updated: Calculated from Radicati daily estimate - Growth in daily email volume from 2027 to 2028:
~3.92% (408.2B → 424.2B)
Last updated: Calculated from Radicati daily estimate
How Many People Use Email?
- Number of email users worldwide (2024):
4.48 billion
Last updated: Radicati (2024–2028 forecast) - Number of email users worldwide (2025):
4.59 billion
Last updated: Radicati (2024–2028 forecast) - Number of email users worldwide (2026):
4.73 billion
Last updated: Radicati (2024–2028 forecast) - Number of email users worldwide (2027):
4.87 billion
Last updated: Radicati (2024–2028 forecast) - Number of email users worldwide (2028):
5.02 billion
Last updated: Radicati (2024–2028 forecast) - Average emails sent per user per day (2024):
~80.7 emails/user/day (based on 361.6B emails and 4.48B users)
Last updated: Calculated from Radicati estimates - Average emails sent per user per day (2025):
~82.0 emails/user/day (based on 376.4B emails and 4.59B users)
Last updated: Calculated from Radicati estimates - Average emails sent per user per day (2026):
~83.0 emails/user/day (based on 392.5B emails and 4.73B users)
Last updated: Calculated from Radicati estimates - Average emails sent per user per day (2027):
~83.8 emails/user/day (based on 408.2B emails and 4.87B users)
Last updated: Calculated from Radicati estimates - Average emails sent per user per day (2028):
~84.5 emails/user/day (based on 424.2B emails and 5.02B users)
Last updated: Calculated from Radicati estimates
Spam, Phishing, and Malicious Email (Most Recent Data Available)
- Share of spam in global email traffic (2024):
44.99%
Last updated: Kaspersky (2024) - Total phishing attempts blocked (2024):
554,002,207
Last updated: Kaspersky (2024) - Malicious email attachments detected (2024):
144,722,674
Last updated: Kaspersky (2024) - Top spam source country (2024):
Russia (32.50%)
Last updated: Kaspersky (2024) - Second top spam source country (2024):
China (11.73%)
Last updated: Kaspersky (2024) - Third top spam source country (2024):
United States (8.33%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
Japan (4.19%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
Poland (3.44%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
Germany (3.19%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
Brazil (2.88%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
India (2.82%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
Netherlands (2.46%)
Last updated: Kaspersky (2024) - Other major spam source country (2024):
United Kingdom (1.43%)
Last updated: Kaspersky (2024)
Classic Email History (Stable Facts)
- Year the first email was sent (commonly credited to Ray Tomlinson):
1971
Last updated: Encyclopaedia Britannica - Year the first widely cited “spam” email was sent (ARPANET marketing message):
1978
Last updated: Wikipedia (historical overview) - Year SMTP was first published as an Internet standard:
1982 (RFC 821)
Last updated: RFC Editor
That’s the latest updated list I can verify with recent sources. I’ll continue adding more as newer, source-backed stats are published.