TO SET UP EMAIL IN MAC MAIL OSX EL-CAPITAN / SIERRA / MOJAVE / CATALINA (IMAP)
Choose Add Account from the Mail
Select "Add Other Mail Account..." and click "Continue"
Complete the details on the wizard that loads up, and click Sign In
|Full Name :||Your Name|
|E-Mail Address :||email@example.com|
|Password:||This is the password you associated with your mailbox in the control panel|
Complete the required info and click "Sign-in"
|Username :||Your email address or the username configured in your CP.|
|Account Type :||imap|
|Incoming Mail Server :||imap.iomartmail.com|
|Outgoing Mail Server :||smtp.iomartmail.com|
Select apps you want to use with your mail account and click "Done"