Email has been a fundamental part of digital communication since its inception. While social media, messengers, and chat apps have gained in popularity over the years, email has managed to remain central to online communication and continues to grow in uptake. In this article, we’ll explore just how many emails are sent per day, and what that means for the future of digital communication.
Current Email Statistics

Email remains one of the most popular and effective ways to communicate with people all over the world. With the internet becoming increasingly accessible, the number of emails sent and received globally has increased each year since 2017.
In 2021, there were an estimated 319.6 billion emails sent and received daily around the world. This figure is projected to increase to 376.4 billion daily emails by 2025.
The Growth of Email
Despite the increasing popularity of messengers, chat apps, and social media, email has managed to remain central to digital communication and continues to grow in uptake. By 2025, the number of global email users is expected to reach a total of 4.6 billion – an approximate six hundred thousand increase in users, up from 4 billion in 2020.
The Growing Number of Emails Sent Per Day
As of 2022, an astounding 333.2 billion emails are sent every day worldwide. That’s a lot of digital correspondence! Despite the increasing popularity of messengers, chat apps, and social media, email remains a popular and effective way to communicate with people all over the world.
Email Marketing Statistics
Not only is email a popular way to communicate, but it is also an effective marketing tool. Both B2B and B2C marketers have found email to be an effective tool for nurturing leads and generating revenue. On average, the ROI for email marketing efforts is 4,200%.
One reason for email marketing’s effectiveness is its high open rate. The average email open rate is 18%, although this can vary depending on the day of the week. It’s important to keep this in mind when planning your email marketing campaigns.
It’s also worth noting that the average email contains 434.48 words. This indicates that marketers have a lot to say and are using email to communicate their messages effectively.
Popular Email Platforms
Gmail, launched in April 2004, has earned its spot as one of the most popular freemail services in the world. According to a 2019 survey, its popularity worldwide was trumped only by Apple’s native iPhone Mail app, with 26% of all email opens worldwide taking place on the platform. Millennials surveyed in the United Kingdom listed Gmail among their top 5 most important mobile apps, while a similar survey carried out in Sweden saw Gmail tie with WhatsApp for a spot among the top mobile apps nationwide.
Mobile Optimization for Email
Mobile devices have made it easier than ever to check email on the go, and it’s no surprise that almost half of all emails are viewed on smartphones or tablets. With the rise of mobile technology, it’s important to make sure that emails are optimized for mobile viewing. This means making sure that the email is easy to read, loads quickly, and is responsive to different screen sizes.
Conclusion
Email communication has become an essential part of modern life. The number of emails sent per day continues to rise, with email marketing playing a significant role in online advertising. While email has its positive effects, it’s crucial to manage it effectively to avoid overload and maintain productivity.
Frequently Asked Questions
As of 2022, an estimated 333.2 billion emails are sent every day worldwide.
The number of emails sent and received globally has increased each year since 2017.
The industries that send the most emails are financial services, healthcare, and retail.
The average email open rate is 18%, although this can vary depending on the day of the week.
On average, businesses see an ROI of 4,200% from their email marketing efforts.
Gmail is one of the most popular freemail services in the world, with 26% of all email opens worldwide taking place on the platform.