Online mails, also known as emails, have become a crucial form of communication in today's digital age. With the rise of remote work and digital communication, there are several other terms that can be used interchangeably with online mails or emails. Such synonyms include electronic mails, e-mails, e-letters, e-messages, web-based mails, internet mails, and webmails. The term web-based email refers to emails accessed through a web browser, whereas internet mails carry broader connotations, referring to email accessed from any device that is connected to the internet. Regardless of the term used, online mails have made communication efficient, convenient, and easy to access from anywhere in the world.