Qlik Sense SaaS currently doesn't allow admins to configure a different SMTP username from the sending email address, which means you can't use certain services, such as Amazon SES, which separate this for additional security.
NPrinting and Alerting both already support this so it would be good to have parity.
NOTE: Upon clicking this link 2 tabs may open - please feel free to close the one with a login page. If you only see 1 tab with the login page, please try clicking this link first: Authenticate me! then try the link above again. Ensure pop-up blocker is off.