Hello @NancyO254 ,
How did you obtain the list to begin with, and is there a reason they wouldn't have already consented to your emails beforehand?
The safest email option would be to email them outside of our system, and request that they utilize a sign up form to confirm their permission to email.
If you upload them into your account, you can potentially try sending a reconfirm opt-in email, but keep in mind if you have any automations that have a trigger type of any new list addition, it will result in them receiving that automated email.
See also:
Email permission policy
Review and Compliance FAQ
... View more
