Incoming IMAP Settings: Follow the instructions for employees. No VPN client is needed for receiving mails from outside the university network.
Outgoing SMTP Settings: If you follow the instructions for employees, you can only send emails when connected to the university network. You will need to setup and run a VPN Client to send mails from outside the university network. Find the download links and instructions here.
Incoming Setup (IMAP):
User: p-number
Password: Your NMAIL / NOTES pw that is used to login at https://nmail.unileoben.ac.at/
Host: nmail.unileoben.ac.at
SSL, Port 993
Outgoing Setup (SMTP):
User: p-number
Password: Your MUOnline pw that is used to login at https://online.unileoben.ac.at/