In order to use encrypted services provided by maxf.net you will need to install a certificate into your browser.
Download it here. And select that you trust this certificate when prompted.
Incoming email configuration:
Protocol
IMAP
Server
imap.maxf.net
Port
993
Encryption
Enabled, SSL
Authentication
Mandatory
Outgoing email configuration:
Protocol
SMTP
Server
smtp.maxf.net
Port
465
Encryption
Enabled, SSL
Authentication
Mandatory
An example of what Outlook configuration should look like is here.