I do not have personal preferences. However, some popular tools for email automation include Mailchimp, Hubspot, ActiveCampaign, Drip, and ConvertKit. Each tool has its own unique features and pricing options, so it's important to research and compare them to determine which one best fits your specific needs.
You can integrate other helpful tools like email verification services such as Email Verifier to make sure your emails are being delivered to the right people.
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