Explore · The library

Every resource founders actually use, in one library.

The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.

What founders use most, ranked by how many answers lean on it.

  1. The UK regulator's own walkthrough of the three-part test (purpose, necessity, balancing) that decides whether you can cold... UK Information Commissioner's Office (ICO) Article · Starting Up When Can We Rely on Legitimate Interests? UK Information Commissioner's Office (ICO)
  2. Written by a company that sells a cold email tool, so it is pragmatic rather than legalistic: what to put in your first email... Hunter.io Article · ~6 min read · Starting Up How to Do Cold Emailing After the GDPR Hunter.io
  3. The single-page comparison table you want the moment your outreach list spans India, the US, the EU, and a couple of other... Overloop Article · ~7 min read · Starting Up Is Cold Email Illegal? Country-by-Country Legal Guide Overloop
  4. A real founder community arguing, in public, about where cold outreach tips into being annoying: templated openers, I loved... Indie Hackers Thread · Starting Up Indie Hackers, Stop Sending Cold Emails David Delahunty (poster)
  5. This is the article whose title is basically your question, and it answers it directly: find one real point of connection, say... Close Article · 10 min read · Starting Up Cold Emailing: Finding the Balance Between Personalization and Scale Samuel Szuchan
  6. This is the chapter of the standard founder-led sales handbook that deals directly with cold email, and it gives you real... Holloway Book · 20 min read · Starting Up Founding Sales: Emailing Prospects Pete Kazanjy
  7. The author names the exact failure mode our short answer warns against, calling most personalized cold email mail merge with a... Indie Hackers Thread · 6 min read · Starting Up Your Cold Emails Aren't Personal, Here's Proof (And How We Fixed It) Virgil Nelson
  8. A marketer at Toggl walks through the actual cold emails that turned into 150,000 visits and 60,000 signups, mostly by pitching... Medium Article · 10 min read · Starting Up 10 Cold Email Tips I Used to Get 60,000 App Signups Dunja Lazić
  9. The project itself, an agent that researches a person then drafts a first line, is less important than the comment thread,... Hacker News Thread · 5 min read · Starting Up Show HN: I Built an Agent to Write Personalized Cold Email Opener Hacker News
  10. Postmark is an email delivery company, so this is a working list from people who watch inboxes for a living, not a generic... Postmark Article · Starting Up 13 reasons why your emails go into the spam folder (and what you can do about it) Postmark
  11. Spam complaints are the signal that actually poisons a domain, more than any single email landing in a spam folder. This piece... Postmark Article · Starting Up How to reduce and fix email spam complaints Postmark
  12. Mailgun is one of the infrastructure providers that actually sends the mail, so this is a hands-on, technically accurate... Mailgun Article · Starting Up How to authenticate your email for better delivery rates Mailgun
  13. HubSpot sends a genuinely enormous volume of email and publishes what they tell their own customers to do to stay out of spam.... HubSpot Knowledge Base Article · Starting Up Improve email deliverability HubSpot Knowledge Base
  14. This directly supports the 'warm up a fresh domain slowly' half of your answer. It lays out why a brand-new domain has zero... Woodpecker Article · Starting Up How to Warm Up a New Domain Before Email Outreach Woodpecker
  15. This is the clearest explanation of exactly the advice in your short answer: keep cold outreach off your main domain so a spam... GlockApps Article · Starting Up Why You Need a Separate Domain for Cold Email Outreach GlockApps
  16. This gives you a week-by-week volume ramp for a new domain alongside the authentication basics, which is more concrete than... Mailshake Article · Starting Up The Ultimate Guide to Email Deliverability Mark Lindquist
  17. Ajay Goel has built email sending software for two decades, so this guide connects deliverability mechanics to the practical... GMass Article · Starting Up The Ultimate Guide to Cold Email Ajay Goel
  18. Al Iverson spent 15 years running deliverability for a major email platform, and this is his running commentary on what mailbox... Al Iverson Article · Starting Up Spam Resource: All Things Deliverability Al Iverson
  19. Written by the team behind one of the most used email finder tools, so it walks through the same order of operations our answer... Hunter.io Blog Article · 10 minute read · Starting Up 10 Ways to Find Anyone's Email Address Ziemek Bućko
  20. A clear rundown from a company that does outreach at scale for its own work, covering lookup tools, pattern guessing, and... Ahrefs Blog Article · 8 minute read · Starting Up 6 Proven Ways To Find Anyone's Email Address Nick Churick
  21. Written from the recipient's side of the inbox by someone who gets hundreds of cold emails a week. It makes the case that... Ahrefs Blog Essay · 12 minute read · Starting Up I Just Deleted Your Outreach Email Without Reading. And NO, I Don't Feel Sorry Tim Soulo
  22. Once you've found or guessed someone's email, this is what to actually put in it, with word for word scripts from a founder who... First Round Review Article · 15 minute read · Starting Up Here are the Scripts for Sales Success: Emails, Calls and Demos That Close Deals Peter Kazanjy
  23. Ferrazzi's core argument is that the people worth reaching are found through relationships, not databases, so a connector who... Keith Ferrazzi Book · about 370 pages · Starting Up Never Eat Alone Keith Ferrazzi
  24. A blunt, contrarian counterpoint from working founders and investors: several commenters argue you shouldn't be hunting down a... Hacker News Thread · Starting Up How to write cold emails to investors Hacker News

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