Email Meter - See how many emails your team deals with to understand their workload. Know how long they take to reply and where they can improve.
Email Inspire - Discover the best of email design and marketing — Browse email newsletters from top brands.
Inbox When Ready - Protect your focus... hide your Gmail inbox by default
EmailWay - Collection of the most insightful and informative email newsletters from across a wide spectrum of industries and interests
Mailpanion - Track your email clicks & prevent others from tracking you.
Really Good Emails - A large collection of good product email design.