1. Introduction The Quick-Sign Milter works in addition with a mail server; this software catches mails before they reach the standard mail server. The milter processes the mails if they correspond to a signature/seal request otherwise, these mails follow the standard process. The quicksign-milter package must be installed and configured on a postfix server. WebADM/OpenOTP infrastructure must be already deployed and integrated with your LDAP backend. Your OpenOTP license must also support Sign option.