This is the mx4.networkz.ch IPv4 MTA

Sending mail (SMTP):

    With STARTTLS:
    Server: mx4.networkz.ch
    Port: 587 (submission)
    Security: STARTTLS
    Authentication Method: normal password
    Username: without mail domain, e.g. user1 if mail is user1@networkz.ch
 
Reading mail (IMAP):

    With STARTTLS:
    Server: mx4.networkz.ch
    Port: 143
    Security: STARTTLS
    Authentication Method: normal password
    Username: without mail domain, e.g. user1 if mail is user1@networkz.ch

    With SSL/TLS:
    Server: mx4.networkz.ch
    Port: 993
    Security: TLS
    Authentication Method: normal password
    Username: without mail domain, e.g. user1 if mail is user1@networkz.ch