Some companies give all new hires e-mail etiquette training that covers the basics including how to communicate quickly but with courtesy, what not to put in writing, and the importance of proofreading e-mails before sending them.

Written communication.

Explanation:

E-mail etiquette training is designed to help individuals who recognize its finest international e-mail composing habits although eliminating failures that would develop not positive impact on the viewer.

There are some rules for email etiquette.

So, the written communication is the example of email-etiquette training.