10 4 meaning in mail

A common abbreviation in the world of email!

"10 4" is a shorthand way of saying "okay" or "agreed" in an email or text message. It's often used to acknowledge or confirm something, similar to "OK" or "got it".

For example, if someone sends an email saying "Can you meet me at 2 PM tomorrow?", you might respond with "10 4" to indicate that you agree to meet at that time.

The phrase is thought to have originated from the early days of radio communication, where "10" was the code for "okay" or "affirmative", and "4" was the code for "Roger" (meaning "received" or "understood"). Over time, the phrase evolved into "10 4" and was adopted in digital communication.