Every resource founders actually use, in one library.

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

1. 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
2. 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
3. Video · Starting Up How I Write Cold Emails That Get 15%+ Response Rate YouTube (Smartlead)
4. 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
5. 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
6. 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
7. 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
8. 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
9. 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
10. 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
11. 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
12. 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
13. 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
14. Video · Starting Up How to Configure SPF, DKIM, and DMARC for Your Domain PowerCert Animated Videos (YouTube)
15. This is where you see, in Gmail's own words, how Gmail actually sees your domain: spam rate, IP and domain reputation,... Google Tool · Starting Up Google Postmaster Tools Google
16. A single search bar to look up your SPF, DKIM, DMARC, MX, and PTR records, plus a blacklist check across dozens of blocklists.... MxToolbox Tool · Starting Up MxToolbox SuperTool MxToolbox
17. 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
18. 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
19. 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
20. 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
21. A straightforward alternative to Hunter that independent tests rate as more accurate on harder to find addresses. Useful as a... VoilaNorbert Tool · Starting Up VoilaNorbert VoilaNorbert
22. This is the plain guess at the company's email pattern from our answer, made mechanical. Feed it a name and domain and it... Mailmeteor Tool · Starting Up Email Permutator Mailmeteor
23. This is the verification step our answer insists on. Paste in a guessed or found address and it tells you whether the inbox is... NeverBounce Tool · Starting Up Email Verifier NeverBounce
24. A large contact database that's worth trying when Hunter or VoilaNorbert come back empty, since it draws on a different index... RocketReach Tool · Starting Up RocketReach RocketReach

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