The protocol to use for email clients on PC, Mac, mobile and tablet is IMAP. This guide assumes that you have already created an email account.
Username: your email account
Password: your email account password
Inbound server: mail.yourdomain.com *
IMAP Port: 993
SSL/TLS: Active
Requires login / Authentication: Yes
Outbound server: mail.yourdomain.com *
SMTP Port: 587
STARTTLS: Active
Requires login / Authentication: Yes
* replace yourdomain.com with your actual domain.