Thank you for reaching out to the Community! Duplicating the lists and removing contacts from it is one way to send to the contacts you want. A new way to filter your contacts is by tagging. You are now given the option to filter by tags and choose how you want to narrow down when scheduling your email.
I hope this provides you with an alternative way to schedule an email to your contacts. In the meantime, if you have any further questions please feel free to reach out to us here. We are always happy to assist you in any way we can!
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