There are approximately 3.9 billion regular email users.
There are approximately 306.4 billion emails sent worldwide every day (2021).
After visiting websites, e-mail is the second most used service on the Internet.
A company of 100 people generates 13.6 tons of CO2 equivalent every year with just its email, or the equivalent of 14 round trips between Paris and New York.
An individual email can be anywhere from from 0.03g of CO2 equivalent to 26g of CO2 equivalent.
Emails generate 410 million tons of CO2 per year.
Average opening rate in emailing is 17.8%
The average deliverability rate in emailing is 99.3%
The average email click-through rate ranges from 2.6% to 3.43%.
The average unsubscribe rate of emailing campaigns is 0.1%
The average email conversion rate is 1.22%
There was about 280 billion spam emails in 2021
Almost 85% of all emails sent are only spam
Spam-related emissions for all email users are estimated at an annual total of 17 million metric tons of CO2
+100k emails tested per day
35% of tested emails are unvalid
30% of tested emails are valid
35% of tested emails can not be verified
By qualifying your email adresses, and helping you removing unvalid emails from your recipients, MailTester.ninja saves 50 tons of CO2 a year.