Mass Mail Failure Reasons
The Mass Mail Summary in Lasso's Sales Center provides you with statistics on the number of mass mails that did not get delivered. There are two columns on the report that display this information - Not Sent and Failed.
Clicking on the Subject in the Mass Mail Summary will take you to the Mass Mail Details. The Failure Reason column in the Mass Mail Details provides information on whether the failure was due to a Hard Bounce, Soft Bounce, or Other. Below are explanations of Not Sent and Failed reasons, and suggested actions you can take to fix the issues.