To access the Exchange email system at the HFT Stuttgart via MS Exchange connector, use the following:
Server: mail.hft-stuttgart.de
Username formatted as ad\<username>
To access the Exchange email system at the HFT Stuttgart via IMAP / SMTP, use the following:
IMAP-Server: mail.hft-stuttgart.de
IMAP-Port: 993
IMAP-Security: SSL
SMTP-Server: mail.hft-stuttgart.de
SMTP-Port: 587
SMTP-Security: TLS (Thunderbird: use STARTTLS, not SSL/TLS)