Email has not been sent to the contact - Filter in lists

[HSvrn]

Hello,

I would like to include in a list contacts that haven't received a specific marketing email. Seems it's not possible right now in a "straight" way.

I know a workaround but that's not easy to use.
(create a list with contacts to which email has been sent + create other list excluding this first list).

[marcy730]

Love this! I posted something similiar but for workflows. 

https://community.hubspot.com/t5/HubSpot-Ideas/Workflow-Idea-Marketing-Emails-Was-not-Sent-to-Contac...