How Many Emails Are Sent Per Day? (2017-2027)

Emails are still a popular source of communication despite the growing popularity of instant messaging apps and social media platforms. 

On average, a person receives approximately 121 emails daily, and on average, per user has 1.75 to 1.9 accounts. So, how many emails are sent per day?

This article will provide you with a detailed answer to this query. At the same time, you will come across facts and figures about the number of emails sent every day by country, how many people use email, and other significant statistics related to email. 

Email Sent Per Days In 2025: Key Highlights

• 376.4 billion emails are predicted to be sent per day in 2025. 

• 9.7 billion emails are sent every day in the United States.

• 4.48 billion people use emails.

• 99% of users check their emails at least once every day.

• The ROI of marketing emails is $42.

How Many E-mails Are Sent Per Day?

376.4 billion emails are estimated to be sent per day in 2025.

That’s a 4.09% increase in the number of emails sent per day compared to 361.6 billion emails sent per day in 2024.

Further, the number of emails sent daily is expected to reach 408.2 billion by 2027.

Here is a table showing the number of emails exchanged every day over the years:

*Projected

Source: Oberlo

How Many Emails Are Sent Each Day In The United States?

9.7 billion emails are sent every day in the United States.

It is the country with the highest number of emails sent per day. Meanwhile, Germany follows the United States, with 8.5 billion emails sent per day.

Here is a table displaying the countries with the highest number of emails sent per day. 

Source: Statista

How Many People Use Emails?

4.48 billion people use emails.

That accounts for 82.35% of 5.44 billion active internet users.

Further, the number of email users is set to reach 4.85 billion by 2027.

Here is a table showing the number of email users over the years:

Source: Oberlo

Ideal Days To Send Marketing Emails

Certain days of the week have higher opening rates, click-through rates, and click-to-open rates.

Usually, Tuesdays, Wednesdays, and Thursdays are good days to send emails to your clients or consumers. 

The probability of gaining reach is higher if you choose to target your audience these days.

Here is a table showing the ideal days to send marketing emails:

As there are good days, there are bad days as well; let us take a look at the days of the week that you should avoid while sending marketing emails.

How Frequently Do People Check Their Emails?

99% of users check their emails at least once every day.

In the United States, 20% of email users check their email over five times daily, and 27% check their mail 1 to 5 times.

Additionally, 89% of users between 18 and 65 check their email regularly. 

How Many Emails End Up In Spam Folders?

85% of emails fall under the spam category. This means 295.20 billion emails that are sent and received every day are spam mail.

The majority of spam emails (36%) fall under the advertising and marketing category.

Here is a table showing the percentage of different types of spam emails:

8 billion spam emails were sent daily in the United States.

Here is a table showing countries which receive the highest spam emails every day:

Source: Statista

Email Marketing Revenue Worldwide (From 2020 To 2027)

Email marketing is estimated to generate $13.69 billion in revenue in 2025. 

This will be the second consecutive time when the revenue will cross the 10 billion mark.

The industry’s revenue was $10.89 billion in 2023.

Here is a table showing the email marketing revenue over the years:

Source: Statista

Additional Insights On Email Campaigns

Here are some important statistics about email marketing that every marketer should know. 

• Globally, 82% of marketers implemented email marketing. 
• 77% of marketers use email marketing to deliver personalized content to subscribers.
• 57.8% of marketing emails have an open rate between 20% and 50%, while 30% have an open rate between 10% and 20%.
• The ROI of marketing emails is $42.
• Around 81% of emails are opened by mobile devices worldwide. 
• 60% of consumers prefer to be connected by the business via email. 

Sources: Optin Monster, Statista, SuperOffice CRM, Luisa Zhou,  Porch Group Media.

Sage Reads: We have covered a detailed guide on email marketing facts and figures.

Conclusion: Globally, 376.4 Billion Emails Are Expected To Be Sent Daily In 2025

The number of emails sent every day has increased from 306.4 billion in 2020 to 376.4 billion in 2025.

Meanwhile, the number of emails sent daily is projected to grow by 12.88% between 2024 and 2027 and reach 408.2 billion.