I am creating an automated email process for a client who is a chapel. They have people who sign up to receive notifications of a death anniversary.
I exported the contact data as CSV from the database, imported it into Mailchimp and I was about to launch a Mailchimp automation based on a date. Then I realized there are many instances where the same person signed up for multiple death anniversary reminders and MailChimp doesn't allow for duplicate email addresses in one list.
Is there another email service or application that I can use for this?