K-9 Mail is an open source, lightweight mail client for Android, with GPG support.

Add an account

Tap the menu button, and tap + Add Account.

Enter your email address.

Tap NEXT and enter the password.

Incoming server settings

Select IMAP account type

IMAP settings

For What kind of account is this? tap IMAP.

Enter the following settings:

IMAP server: imap.imaginet.co.za

Security: SSL/TLS

IMAP Port: 993

Tap NEXT.

Enter the following Outgoing server settings:

SMTP server: smtp.imaginet.co.za

Security: SSL/TLS

Port: 587

Require sign-in: enabled

Username: your full email address

Authentication: Normal password

Password: Your email password

Tap NEXT