To leverage email marketing for your Product Hunt launch, start by building an email list of interested subscribers. Send a pre-launch announcement to build anticipation and invite support. Personalize outreach to influencers and individual subscribers, requesting their support and feedback. Use email automation to send a sequence of valuable emails leading up to and during the launch. Encourage social sharing and implement a referral program. After the launch, send a follow-up email to thank subscribers and provide updates. By using email marketing effectively, you can reach a targeted audience, generate buzz, and drive engagement for your Product Hunt launch.