To configure the Cyberoam to use the SatNAG mail server:

System->Configuration->Notification

SMTP SERVER:  satnag.unols.org (137.229.113.13)
SMTP PORT: 25
STARTTLS: true
USERNAME: [contact satNAG for user/pw]

To hash the username:

echo -n "[username]" | sha1sum | awk '{print $1}'