Final answer:
SMTP (Simple Mail Transfer Protocol) is the most prevalent protocol for sending email, while IMAP and POP are used for receiving emails. Practicing good netiquette is crucial for positive online email interactions.
Step-by-step explanation:
The most prevalent protocol that e-mail is sent by is Simple Mail Transfer Protocol (SMTP). Email has become a very important means of personal communication, especially in instances where people need to communicate over distances instantly. In addition to SMTP, emails are also received using protocols like Internet Message Access Protocol (IMAP) or Post Office Protocol (POP). While SMTP is primarily used for sending emails, IMAP and POP are used for retrieving emails from a server.
When engaging with email communication, it's essential to practice good netiquette to leave a positive impression online. This refers to the code of polite behavior in electronic communication. Understanding the underlying protocols that govern email transmission ensures you can efficiently troubleshoot or configure email systems appropriately.