imap server: mx01c.luke.ch or mx02c.luke.ch
imap port: 993
imap socket type: SSL
imap authentication: normal password
imap user: your-email-address

smtp server: mx01c.luke.ch or mx02c.luke.ch
smtp port: 587
smtp socket type: STARTTLS
smtp authentication: normal password
smtp user: your-email-address

pop3: no longer supported

sieve server: mx01c.luke.ch or mx02c.luke.ch
sieve port: 4190
sieve socket type: STARTTLS
sieve authentication: normal password
sieve user: your-email-address

dns1.luke.ch
dns2.luke.ch

web01c.luke.ch (Apache): 84.253.33.237, 2a02:121f:6e:a103::26
web02c.luke.ch (Nginx): 213.3.54.26, 2a02:121f:6f:a103::26

Servername: web01c.luke.ch or web02c.luke.ch
Port: 21
Encryption: Explicit FTP over TLS