Launch your Android Email application.
Enter your Email Account and Password.
Select POP3 or IMAP. We recommend you to use the IMAP email protocol.
What is the difference between POP3 and IMAP can be found here:
https://webhostface.com/kb/what-is-the-difference-between-pop3-and-imap/
Your Android device will automatically fill in the next page except the IMAP server. Make sure that your enter:
mail.yourdomain.com
Click the Next button and your Android will again enter all of the fields automatically.
That is it! Now your Android device will connect to your email account.