The best way to accomplish the goal of sending the same email template again this week to the same list, but make sure that the prospects that received it last week do not get it again, is to create a new list of the prospects that received the email last week and then use it as a suppression list when sending the email template to the "Hot Prospects" list . This way, the prospects who already received the email will be excluded from the recipient list, and only the new prospects who match the dynamic criteria will receive the email. Creating a new dynamic list using the criteria "Prospect email template", the template name, and "was not received" (A) is not a valid option, as there is no such criteria available for dynamic lists. Sending the email template to the "Hot Prospects" list, but selecting the "deduplicate" option (B) is not a valid option, as the deduplicate option only removes duplicate prospects within the same list, not across different lists. Sending the email template to the "Hot Prospects" list like last time (D) is not a valid option, as the prospects that received it before will not be automatically suppressed from receiving the same email template, unless the email template has the option "Do not send to prospects who have already received this email" enabled. Reference: Create a Dynamic List, Send a List Email