How Many Emails Are Sent Per Day in 2021? Quick Stats

Last Updated: December 1, 2021

Jason Wise

Jason Wise

This article focuses on how many emails are sent per day, as well as daily email usage stats across the world.
How Many Emails Are Sent and Received in A Day?
EarthWeb is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

Not many people of the new generation remember the work of a postman. Several years back, there was a time where a postman had to travel miles and miles to deliver a single mail! As time passed, email technology was invented.

Today approximately 2.4 billion emails are getting delivered in a second! As a result, email is the most sought-after communication medium for business interactions.

Email is also one of the cheapest marketing tools used by small brands to industry giants. 

“Quality over quantity- Emails may be cost-efficient. But it’s no excuse to not produce quality content to give to a targeted audience.”

Benjamin Murray

This article focuses on how many emails are sent per day, as well as daily email usage stats across the world.

Key Daily Email Statistics

  1. 99% of email users check their inbox at least once a day
  2. 319.6 billion emails are sent per day
  3. 20% of Americans check their email inbox more than five times a day.
  4. 85% of all emails are spam mails
  5. $7000 earned per day by sending bulk emails
  6. 100 million spam emails are blocked by Gmail every day
  7. 31 billion emails bounce in a day
  8. 58% Genz check email multiple times in a day
  9. 66% of Genz receive less than 20 emails daily
  10. Plain Text emails got a 42% open rate compared to the HTML emails

Which Is the Most Used Email Client in The World?

As you can see in the chart(prepared by Litmus), Apple email client comes first in the most popular email clients globally, followed by Gmail.

However, while Apple and Gmail have a close chase, the third most used email provider is Outlook which falls low with 9% compared to the top 2.

image 110
[Source]

Now let us check out 20 interesting daily email usage statistics of 2021.

image 109

1. 99% of Email Users Check Their Inbox at Least Once a Day

Now, this statistic is the minimum number of inbox visits in a day. Nowadays, every brand uses email to connect with its customers. Also, people send and receive so many work emails in a day.

On average, a person checks the email 15 times! Based on a study about people’s behavior, The survey found that people who check fewer emails(3 or less) felt less stress!

2. 126 Business Emails Are Sent/Recieved Per User/Day

Based on the current statistics, the email usage growth rate will be 3% by 2022. There are several social media platforms for people to communicate with each other.

When it comes to the corporate field, specific tools are specifically designed for communication purposes (E.g., Slack).

However, people still prefer emails over any replacements. Significantly, the corporate industry relies on emails for most of the official communications.

image 108

[Source]

3. 319.6 Billion Emails Are Sent Per Day 

Statista reports show that the daily email count has crossed 300 billion in 2020. And the number is still growing.

Based on the statistics from the research data, people will send and receive more than 376 billion emails per day by 2025. 

image 111
[ Source]
image 112
[Source]

4. 40 Work Emails Sent Per Day

On average, an office employee delivers more than 40 emails in a day. However, the total emails received by an office employee in a day are between 100 and 120.

These statistics prove that Email is an essential part of business communication and cannot be replaced by the latest social media communication technologies.

5. Email Is the Third-Most Crucial Influential Source of Information

Colleague recommendation is the most meaningful information in the B2B market. Second, recommendations from Industry experts follow it.

And the third most important information comes from Email. Almost 86% of professional employees prefer Email for all kinds of official communications.

It includes leaving letters, daily/weekly/quarterly progress reports, Salary appraisal requests, Termination requests, etc.

6. 20% of Americans Check Their Email Inbox More than Five Times a Day.

In 2015, a company named Fluent conducted a survey among 1603 Americans. There were people of all ages between 18 and 65. According to the survey statistics, 89% of Americans check their inbox regularly.

About 27% of them check emails 1 to 5 times a day. 42% of the Americans subscribed to receive emails from brands to get customized discounts and promotional offers. 60% of people use a single email account for all purposes.

And people aged between 18-24 has multiple emails to manage office and personal purposes separately. 

image 113

7. 85% of All Emails Are Spam Mails

According to Stats, nearly 122.23 billion spam emails are sent every day. At the same time, cross-checking with the total number of emails sent in a day, the count of spam emails is huge. If all of the spam emails are filtered, only 22.43 billion emails have legitimate content!

At one time in 2020, the maximum spam email count was recorded as 316 billion! The latest stats show that the average count of spam emails is reducing.

The intelligent algorithms of most client emails can detect and block spam emails. And most people are not interested in opening spam emails if they get suspicious from reading the subject content.

8. $7000 Earned per Day by Sending Bulk Emails

Certain brands and businesses outsource bulk-mailing to specialist groups. Such people or groups will be experts in sending spam emails to the target audience.

As a result, they receive an average of $7000 in a day even without showing any success reports!

9. 100 Million Spam Emails Are Blocked by Gmail Every Day

27% of all the emails opened are of Gmail. It has around 1.8 billion registered users. The advanced machine learning techniques implemented by Gmail easily filter the majority of spam emails.

The Gmail metrics show that they are blocking almost 10 million spam-related emails in a minute!

Google says they can stop 99.9% of the malware and phishing spam mails before reaching the Gmail inbox. In addition, Gmail is the most preferent email client by all age groups.

image 114
image 115

[Source]

10. Professionals Respond to 25% of The Emails Received.

When compared to ordinary users, professional’s email inboxes may contain 200 emails on average.

Since most official communications are handled using email, professionals check their emails every 30-37 minutes. According to these stats, a professional checks email at least once every 15 minutes.

How Many Marketing Emails Are Sent in A Day 

Email is a beautiful medium to reach people at the right time. Businesses and brands rely upon emails for communicating with themselves and customers.

There are several reasons by which email marketing is still trending.

image 116

11. 143 Minutes of Each Weekday Spend Checking Emails

The email users will grow at a rate of 100 million per year in the next 4-5 years. Brands claim that they get a great response through email marketing on average based on email marketing statistics.

12. High Returns from Low Investments

For every marketing email sent with a $1 investment, the ROI is expected to be $42! Email marketing is considered to be the cheapest method of advertising and marketing opted by businesses.

It has a vast potential to communicate with the target audience far better than the other costly marketing methods.

13. 60% Click Rate Increase in 2020

How many people eat food from restaurants and order food online daily?

About 42% of all food orders placed in the world are online. Every day people try different food items based on the options provided by the businesses.

If restaurants and online food brands can email their clients to illustrate the promotional offers applicable for the day, then there is a 60% chance that the people will check those items. 

14. 31% Daily Open Rates Since 2020

The Covid-19 pandemic has changes people’s behavior in many things. It includes their consumer character.

Usually, eCommerce sites and online services receive a second chance in the absence of regular retail shops and restaurants. But the unexpected lockdown pushed people to depend upon online transactions than usual. 

Sometimes it was the only available option for many people. Most of the eCommerce sites and online services demand an email from the customer to confirm their account.

After understanding customer behavior, brands use emails to provide them with customized offers to buy the searched products.

Businesses noted that almost 78% of emails sent per day received a response from the customers.

15. 31 Billion Emails Bounce in A Day

Even though email is an effective tool for customer-oriented marketing, there are high chances for the anti-spam mechanisms to block down some emails.

For every 100 emails sent in a day, 15 of them are blocked and never reach the customer inbox. The 85% success rate seems pretty ok at first glance. But when the total count becomes high, the average bounce rate of email seems significant.

Brands can follow specific simple steps to overcome the email bouncing issue. The essential point is to be honest, as the email should contain genuine details to convince the spam detection bot and the customer. 

What is the Email usage of Millennials in a day?

16. The Millennial Style

Millennials(born between 1981 and 1994) use emails more compared to later generations. There are approximately 70 million Millennials in the US.

According to statistics, they spent 6.4 hours checking emails in a day. Most people falling in this age group are either following a business or doing a job. Hence email has a direct influence on their work life.

Since smartphones are used by most Millennials(59%), it is easy for them to check and respond to emails from anywhere. 22% of the millennials prefer laptops for checking emails, and 13% use desktops.

image 117

[Source]

17. 58% Genz Check Email Multiple Times in A Day

Genz has a unique style of email usage. This generation is the most influenced by modern social media platforms. Still, 23% of them check their email at least once a day. 

5.2% check the emails once a week, while 12.1% like to visit the email inbox once or twice a week.

image 118
[Source]

18. 37.4% Genz Receive 1-5 Emails in A Day

66% of Genz receive less than 20 emails daily, and 31.8 % of Genz like to receive brand emails more than once a week.

image 119
[Source]

19. People Sent 74 Trillion Emails Last Year

Based on the statistics, about 2.4 billion emails are sent in a second. Most of the emails sent and received are either spam or marketing emails from various brands. Office emails and personal emails come last on the list.

20. People Who Check Emails Daily Prefer Plain Text Emails.

Certain brands send emails with different HTML content to get more attention. But people who check their emails daily prefer plain text emails rather than HTML emails. The simple text emails got a 42% open rate compared to the HTML emails.

Also, HTML contents in the email can redirect the email to the spam folder easily! The effort and budget required to create HTML email content are very high compared to regular emails.

Some brands use various emojis in the subject line to increase the open rate. Even though such emails grab customers attention, it raises suspicion of malware content or spam.

Moreover, some HTML contents may not be loaded correctly while opening the email due to the weak network or device. Thus, it can create a harmful impact on the brand.

image 120
[Source]

What Is the Future of Emails Sent per Day?

Based on the current stats, experts are looking forward to a bright future for email even in the middle of the surge of advanced communication technologies.

Germany is considered to be one of the most technologically advanced societies. Interestingly, Germany has the highest email open rate, which is more than 40%.

The future of online business is expected to grow exponentially. However, an email account is one of the most basic requirements for performing online transactions. Therefore, the daily activities related to email will increase in the future.

Almost 90% of all email users prefer to receive emails from brands they like rather than social media marketing messages.

People still believe email to be the most influential business tool for communication over other media platforms.

FAQ

How Many People Use Email in The World?

Four billion people in the world use email, as per the stats in 2020. Furthermore, the count of people using email is expected to grow by 4.6 billion in 2025.

How Many of The Emails Are Spam?

85% of the emails are spam. Even though some marketing emails are harmless, the advanced filters in the email block the spam attacks significantly.

How Many Emails Can Be Sent in Gmail in A Day?

Using Gmail, a person can send a maximum of 2000 emails in 24 hours. Messages automatically forwarded have a limit of 10,000.

References:

1. https://www.campaignmonitor.com/resources/knowledge-base/how-many-emails-does-the-average-person-receive-per-day/

2. https://review42.com/resources/how-many-emails-are-sent-per-day/

3. https://www.campaignmonitor.com/blog/email-marketing/shocking-truth-about-how-many-emails-sent/

4. https://www.templafy.com/blog/how-many-emails-are-sent-every-day-top-email-statistics-your-business-needs-to-know/

5. https://blog.hubspot.com/marketing/plain-text-vs-html-emails-data

Written by Jason Wise

Hi! I’m Jason. I tend to gravitate towards business and technology topics, with a deep interest in social media, privacy and crypto. I enjoy testing and reviewing products, so you’ll see a lot of that by me here on EarthWeb.