National Email Day

National Email Day is observed annually on April 23. The holiday honors the invention of electronic mail and its transformative impact on global communication, coinciding with the birthday of Ray Tomlinson, the computer programmer credited with sending the first networked email.

See also: Electronic Greetings Day, National Letter Writing Day, World Paper Free Day

History of National Email Day

The roots of National Email Day date back to 1971, when Ray Tomlinson was working as an engineer for Bolt Beranek and Newman (BBN) on ARPANET, the precursor to the modern internet. Before Tomlinson’s innovation, electronic messages could only be sent between users on the same computer. Tomlinson sought a way to transmit files between different machines and developed a program called SNDMSG. He famously chose the “@” symbol to separate the user’s name from the host name, creating the “user@host” addressing format that remains the global standard today.

National Email Day was established in 2022 to officially commemorate Tomlinson’s contributions and the legacy of his “neat idea,” as he famously described it. Although he was not specifically tasked with inventing a communication system, his independent tinkering led to a revolution in how people exchange information. The first email ever sent was a test message between two side-by-side computers; while the exact content was not preserved, Tomlinson noted it was likely something insignificant like “QWERTYUIOP.” The day now serves as a tribute to the ingenuity that turned a simple experiment into a tool used by billions.

Why is National Email Day important?

The day recognizes email as the fundamental backbone of digital society, bridging gaps in business, education, and personal relationships. It is estimated that more than four billion people worldwide rely on email for essential tasks, from receiving job offers to managing government services. The observance highlights how this technology replaced slower methods of communication like fax machines and physical memos, dramatically increasing global productivity and enabling the rise of remote work and international collaboration.

Beyond its utility, National Email Day encourages a reflection on digital security and organization. In an era where hundreds of billions of emails are sent daily, the holiday provides a focal point for discussing best practices such as phishing awareness, two-factor authentication, and data privacy. It also celebrates the democratization of information, as email provides a low-cost, near-instant way for anyone with an internet connection to reach across geographical borders. The day honors the shift from a world of “snail mail” to one of instant connectivity.

• Ray Tomlinson chose the @ symbol because it was rarely used and highly functional
• The first networked email was sent 14 years before the internet became public
• Email marketing generates a significant return on investment for global businesses
• The holiday promotes literacy and professional digital communication skills
• Over 360 billion emails are exchanged every single day around the world

How to Celebrate National Email Day

Observing National Email Day often involves a mix of productivity and personal connection. Many people use the day to perform an “inbox audit,” which includes unsubscribing from unwanted newsletters, deleting old junk mail, and organizing messages into folders. Achieving “Inbox Zero” is a popular challenge for the day, helping individuals reduce digital clutter and improve their daily work efficiency. It is also an ideal time to update email passwords and review security settings to ensure personal data remains protected.

On a more personal note, the day encourages sending “emails of appreciation” to mentors, friends, or family members. Writing a thoughtful, well-crafted message to someone you haven’t spoken to in a while honors the original intent of the technology: to connect people across distances. Some offices hold “email etiquette” workshops or share tips on how to write more effective subject lines and concise messages. Sharing fun facts about the history of the @ symbol or the first spam email sent in 1978 also helps spread awareness of the holiday’s significance.

• Spend time organizing your inbox by creating specific folders and labels
• Send a heartfelt thank-you email to a colleague or a former teacher
• Unsubscribe from at least five mailing lists that you no longer read
• Change your email password and enable two-factor authentication for safety
• Share a “word of the day” or an interesting article with a friend via email

National Email Day Dates Table