How do I set up a smartlist to send an email to someone who has "not been sent" an email?
Hi everyone,
Very new Marketo user here. I'd like to set up a smart list to send an email to a person who has not yet been sent that email before. When setting up the smartlist, I seem to only be able to find a filter for having "been sent" an email, but not the opposite for "has not been sent"
Does this filter exist? Has anyone ever tried something like this?
Thanks in advance!