1. Click on File then Info then Account Setting
2. Click on New
3 Check on RadioButton: the Manual setup or additional server types then click on Next
4 Check on RadioButton: POP or IMAP then click on Next
5 Then fill in your main Server setting details like below then click on More Setting
6 Click on Outgoing Server and click on the CheckBox. Then Click on Advanced and change the Outgoing Server(SMTP) to 587 and Encryption type connection to Auto then click on Ok
7 Then Click on Next
8 Finally if you successfully followed the steps you will get the following results. Two green ticks means it was successful. Any red tick means there is a problem.