There are several ways to implement expiration in your emails:
1. Countdown Timers: Including a countdown timer in your email can visually emphasize the urgency. It shows exactly how much time the recipient has left to take advantage of the offer.
2. Limited-Time Offers: Clearly state the expiration date or time within the email content. Use phrases like "Ends Today" or "Only 24 Hours Left" to highlight urgency.
3. Exclusive Deals: Offer exclusive deals that are only available to email subscribers for a limited time, creating a sense of exclusivity.
4. Dynamic Content: Use dynamic content to automatically update or change content after the offer expires, ensuring that recipients are not seeing outdated information.