1. Overview This guide will show how to set up the email settings for sending MAIL OTP. If one needs to change or to add Localized Message then navigate to the following documentation Message Templates. 2. Config Mail Server SMTP mail servers can be used by WebADM for sending emails. Therefore add your mail server settings in the following configuration file /opt/webadm/conf/servers.xml. If no server is specified, WebADM will use the local mailer in /usr/sbin/sendmail to send emails.