1 - Select on the Mail's top left click on "Preferences".
2 - On the brim "accounts" click on "+" to add a new account.
3 - Fill as the image below:
4 - Select "Configure Manually".
5 - Fill as the image below and select between the protocols IMAP and POP, remember:
6 - Click on "Next".
7 - Fill with your information, as you've been done and when you finish click on "Next". Finished the account, click on"Conect account" and click on "Create".
8 - We need to enable the account touse it. On the brim "Accounts" select "Advanced".
9 - Select the brim "Information account" (the brim with a light blue background in the image below) and edit the server list:
10 - As the image, verify the content the click "Advaced"(beside information account).
11 - Use the personalized door 587, fill with your login and password, unmark "Use SSL" and, finally, clique "OK".