The importance of writing a good email.

Nowadays, as technology evolves, the use of emails is getting more used by everyone. An email could be sent to friends, family, in your work, asking for information..

A very important part of an email is how to write it, it depends on who you are writing to and also for what. You will not write the same to your boss asking for a salary rise than asking if he wants to get a cofee in your break. Also you will not write to your relatives telling them bad news than asking what are the going to do on holidays.
The structure should be correct in every type of email because the other person should have the opportunity to understand it in every content. One of the most important part of an email has to be the subject because the receptor can see in just one line what is about the email and if it is importat or not