1. The first email ever sent was by Ray Tomlinson. It was a test and is said something like “QWERTYUIOP”
2. There are 4.03 billion email users worldwide ⁽¹⁾
3. Email usage penetration in the US is 90.3% ⁽¹⁾
4. 93.4% of people between 25-44 prefer email over social media. ⁽²⁾
5. 38.7% of people check email while in the toilet ⁽³⁾
6. 77% of marketers claimed that email marketing is one of their most effective marketing channels. ⁽⁴⁾
7. Over 50% of people check email before doing anything else online ⁽²⁾
8. Nearly 100% of email marketers who start and stay testing for at least 6 months, become addicted to learning and implementing.
9. 52% of people have more than 2 email addresses. ⁽⁵⁾
10. There is no right or wrong way to spell it. Email or e-mail are both right, so focus on something else.

Sources
(1) – Statista
(2) – OptinMonster
(3) – Phrasee
(4) – Litmus
(5) – DMA