The best practice when acquiring new contacts via a physical signup is to confirm their interest and consent through a double opt-in process. This helps ensure compliance with data privacy regulations, confirming that the contacts genuinely wish to receive communications. A double opt-in involves sending a confirmation email with an action step (usually clicking a link) to verify the contact's email address and consent.
* Why Double Opt-In is Important: It improves list quality by verifying that each email is accurate and that the individual is interested in receiving communications. This practice reduces unsubscribe rates and potential spam complaints.
* Salesforce Documentation Reference: See Salesforce's recommendations on Opt-In Best Practices for more details on using double opt-in to ensure compliance and engagement.