Really Good Emails - A large collection of good product email design.
Freshworks for Startups - Get $10,000 credits on Freshworks products for your startup
Good Sales Emails - Best sales emails from great companies
Intercom for startups - Eligible startups get advanced Intercom features and Early Stage Academy at a 95% discount.The plan comes with 10 seats and 2,000 people reached.
Great Email Copy - A dose of emails from around the web.
GrowthList - A crowd-sourced list of growth hacks