# Blog

> Notes on outbound, from the people sending it. Guides, teardowns and founder notes on cold email, LinkedIn, deliverability and pipeline.

## Posts

- [.com vs .io vs .co vs .ai: The Best Domain Extension for Cold Email](/blog/best-domain-extension-cold-email.md) - Nov 04, 2026 · Guide · 12 min
- [How Long Do Prospects Take to Reply to Cold Email?](/blog/how-long-cold-email-replies-take.md) - Nov 03, 2026 · Guide · 13 min
- [Cold Emailing Recently Funded Companies: What Works After a Raise](/blog/cold-email-recently-funded-companies.md) - Nov 02, 2026 · Lead Generation · 11 min
- [How Long Should a Cold Email Be? Reply Rates by Word Count](/blog/cold-email-length-reply-rate.md) - Nov 01, 2026 · Guide · 11 min
- [Which Follow-Up Gets the Most Replies? Reply Data by Sequence Step](/blog/cold-email-follow-up-reply-rate-by-step.md) - Oct 31, 2026 · Guide · 13 min
- [Do CEOs Reply to Cold Email More Than VPs? Reply Rates by Job Title](/blog/cold-email-reply-rate-by-job-title.md) - Oct 30, 2026 · Guide · 12 min
- [Cold Email Reply Rates by Company Size: What Our Data Shows](/blog/cold-email-reply-rate-by-company-size.md) - Oct 29, 2026 · Guide · 13 min
- [How Many People at One Company Should You Cold Email, and Who First?](/blog/how-many-contacts-per-company-cold-email.md) - Oct 28, 2026 · Guide · 13 min
- [I Sent 5,000 Cold Emails and Got Zero Replies. What Went Wrong?](/blog/cold-email-zero-replies.md) - Oct 27, 2026 · Guide · 12 min
- [Should You Put a Calendly Link in Your First Cold Email?](/blog/calendar-link-first-cold-email.md) - Oct 26, 2026 · Guide · 12 min
- [Google Workspace vs Microsoft 365 vs Private SMTP for Cold Email](/blog/google-workspace-vs-microsoft-365-vs-smtp-cold-email.md) - Oct 25, 2026 · Comparisons · 13 min
- [Cold Email With a 500-Company TAM: How to Work Every Account](/blog/cold-email-small-tam.md) - Oct 24, 2026 · Lead Generation · 12 min
- [Does Cold Email Work for a $5K ACV Product? The Math](/blog/cold-email-low-acv.md) - Oct 23, 2026 · Lead Generation · 12 min
- [Can ChatGPT Find Someone's Email Address?](/blog/can-chatgpt-find-email-addresses.md) - Oct 22, 2026 · Lead Generation · 12 min
- [How Web Design Agencies Get Clients with Cold Email](/blog/web-design-agency-cold-email-clients.md) - Oct 21, 2026 · Lead Generation · 12 min
- [Why Cold Emails Land in Outlook Junk but Not Gmail](/blog/cold-emails-outlook-junk-not-gmail.md) - Oct 20, 2026 · Guide · 12 min
- [How to Cold Email with No Customers or Case Studies Yet](/blog/cold-email-no-case-studies.md) - Oct 19, 2026 · Guide · 12 min
- [How to Cold Email Companies Already Using a Competitor](/blog/cold-email-competitor-customers.md) - Oct 18, 2026 · Lead Generation · 11 min
- [How SEO Agencies Get Clients with Cold Email (Skip the Audit)](/blog/seo-agency-cold-email-clients.md) - Oct 17, 2026 · Lead Generation · 12 min
- [How to Run Cold Email Campaigns from Claude with MCP](/blog/cold-email-from-claude-mcp.md) - Oct 16, 2026 · Guide · 14 min
- [Can You Use HubSpot Sequences for Cold Email? Not on Your Main Domain](/blog/hubspot-sequences-cold-email.md) - Oct 15, 2026 · Guide · 12 min
- [Google Workspace Suspended My Account for Cold Email. Now What?](/blog/google-workspace-suspended-cold-email.md) - Oct 14, 2026 · Guide · 12 min
- [Listed on Spamhaus? How to Check, Get Delisted, and Stay Off](/blog/spamhaus-blocklist-removal.md) - Oct 13, 2026 · Guide · 12 min
- [La Growth Machine Alternatives: True Multichannel or Bolted-On?](/blog/la-growth-machine-alternatives.md) - Oct 10, 2026 · Comparisons · 13 min
- [Cold Email A/B Testing: Stop Testing Subject Lines and Calling It Science](/blog/cold-email-ab-testing.md) - Oct 05, 2026 · Guide · 10 min
- [How to Handle Cold Email Replies (The Campaign Is Not Over at Send)](/blog/how-to-handle-cold-email-replies.md) - Sep 29, 2026 · Guide · 8 min
- [Cold Email Spam Words in 2026 Are Folklore. Filters Score Patterns.](/blog/cold-email-spam-words.md) - Sep 27, 2026 · Guide · 8 min
- [Waterfall Enrichment: Stop Paying for Empty Rows](/blog/waterfall-enrichment.md) - Sep 23, 2026 · Guide · 10 min
- [B2B Email Finder: A Credit Is Not a Lead](/blog/b2b-email-finder.md) - Sep 21, 2026 · Lead Generation · 8 min
- [LinkedIn's Real Connection Limit (and Why Your Tool's Credit Pack Doesn't Matter)](/blog/linkedin-connection-request-limit.md) - Sep 17, 2026 · Guide · 10 min
- [Job-Change Outreach: A New VP Is a Window, Not a Buying Signal](/blog/job-change-intent-outbound.md) - Sep 15, 2026 · Lead Generation · 10 min
- [LinkedIn vs Cold Email Is the Wrong Question. Run Them as One Sequence.](/blog/linkedin-vs-cold-email.md) - Sep 11, 2026 · Guide · 8 min
- [Signal-Based Outbound: Timing Beats Copy — If a Human Still Writes the Email](/blog/signal-based-outbound.md) - Sep 07, 2026 · Lead Generation · 10 min
- [Cold Email Bounce Rate Is a List Metric Wearing a Deliverability Costume](/blog/cold-email-bounce-rate.md) - Sep 01, 2026 · Guide · 9 min
- [Catch-All Email Verification: Why 'Maybe Valid' Is a Reputation Bet](/blog/catch-all-email-verification.md) - Aug 30, 2026 · Guide · 10 min
- [Dedicated IP vs Shared IP for Cold Email: You're Asking the Wrong First Question](/blog/dedicated-ip-vs-shared-ip-cold-email.md) - Aug 28, 2026 · Guide · 10 min
- [Cold Email Opt-Out Rules: CAN-SPAM, GDPR and CASL Side by Side](/blog/cold-email-unsubscribe-requirements.md) - Aug 24, 2026 · Guide · 10 min
- [How Many Cold Emails Can You Actually Send Per Day Per Inbox?](/blog/how-many-cold-emails-per-day.md) - Aug 11, 2026 · Guide · 9 min
- [What Is a Good Cold Email Reply Rate? (And Why Every Source Disagrees)](/blog/cold-email-reply-rate.md) - Aug 09, 2026 · Guide · 9 min
- [Email Warmup for Cold Outreach: Private Warmup vs Warmup Networks](/blog/cold-email-warmup.md) - Aug 07, 2026 · Guide · 10 min
- [AI SDR vs Human SDR: The 90/10 Split Nobody Talks About](/blog/ai-sdr-vs-human-sdr.md) - Aug 03, 2026 · Comparisons · 10 min
- [Cold Email Benchmarks 2026: What a Million Emails a Month Actually Looks Like](/blog/cold-email-benchmarks.md) - Aug 01, 2026 · Guide · 14 min
- [How to Build a Cold-Email Lead List That Actually Converts (ICP + Buying Signals)](/blog/build-cold-email-lead-list-icp.md) - Jul 24, 2026 · Lead Generation · 6 min
- [How to Get Verified B2B Email Leads (Without the Bounce-Rate Nightmare)](/blog/verified-b2b-email-leads.md) - Jul 22, 2026 · Guide · 5 min
- [Cold Email Deliverability: The Complete 2026 Guide](/blog/cold-email-deliverability.md) - Jul 21, 2026 · Guide · 12 min
- [Introducing Kenso Daily: 10 Verified Leads in Your Inbox Every Morning, Free](/blog/introducing-ken-daily.md) - Jul 20, 2026 · Founder Notes · 5 min
- [I Ran an AI Agent Army on My Codebase. Here's What It Actually Cost.](/blog/ai-agent-army-real-cost.md) - Jul 17, 2026 · Founder Notes · 10 min
- [What Is AI Email Personalization? (With Examples)](/blog/ai-email-personalization.md) - Jul 15, 2026 · Lead Generation · 8 min
- [Cold Email Tools vs. a Done-for-You Service: How to Choose](/blog/cold-email-tools-vs-done-for-you-service.md) - Jul 13, 2026 · Comparisons · 11 min
- [AI Lead Generation: The Complete 2026 Guide for B2B](/blog/ai-lead-generation.md) - Jul 09, 2026 · Lead Generation · 12 min
- [Out-of-Office Replies Are Quietly Killing Your Cold Email Deliverability](/blog/out-of-office-replies-are-quietly-killing-your-cold-email-deliverability.md) - Jun 28, 2026 · Founder Notes · 5 min
- [Why Your Cold Email List Is Smaller Than You Think](/blog/why-your-cold-email-list-is-smaller-than-you-think.md) - Jun 26, 2026 · Founder Notes · 7 min
- [Should You Track Email Opens on Cold Email? (We Turned It Off)](/blog/should-you-track-email-opens-on-cold-email-we-turned-it-off.md) - Jun 24, 2026 · Founder Notes · 8 min
- [Why AI Personalization Gets Your Cold Email Flagged as Spam (And How to Fix It)](/blog/why-ai-personalization-gets-your-cold-email-flagged-as-spam-and-how-to-fix-it.md) - Jun 22, 2026 · Founder Notes · 5 min
- [How to Write and QA Cold Email at Scale](/blog/how-to-write-and-qa-cold-email-at-scale.md) - Jun 21, 2026 · Founder Notes · 7 min
- [Clay Alternatives in 2026: When a Tool Isn't the Answer](/blog/clay-alternatives.md) - Jun 21, 2026 · Comparisons · 9 min
- [Cold Email Agency vs. In-House SDR: The Real Cost Comparison (2026)](/blog/cold-email-agency-vs-in-house-sdr.md) - Jun 18, 2026 · Comparisons · 12 min
- [What Is Done-for-You Cold Email? (And How It Actually Works)](/blog/done-for-you-cold-email.md) - Jun 17, 2026 · Guide · 10 min
- [Cold Email Agency: The Complete Guide to Done-for-You Outreach (2026)](/blog/cold-email-agency.md) - Jun 07, 2026 · Guide · 13 min
- [How We Hit 600K+ LinkedIn Impressions in 72 Days by Just Being Real](/blog/linkedin-600k-impressions-72-days.md) - May 26, 2026 · Case Study · 5 min
- [How We Helped SaasRise Go from 260 to 370 Members in 11 Months ($1.5M to $4.2M ARR)](/blog/saasrise-260-to-370-members.md) - May 26, 2026 · Case Study · 8 min
- [What an Agent Army Actually Costs When You Run It for Real](/blog/what-an-agent-army-actually-costs-when-you-run-it-for-real.md) - May 02, 2026 · Founder Notes · 7 min
- [The Bet: Owning the Entire Cold Email Stack](/blog/the-bet-owning-the-entire-cold-email-stack.md) - Mar 04, 2026 · Founder Notes · 4 min
- [AI Made Me Addicted to Productivity](/blog/ai-made-me-addicted-to-productivity.md) - Feb 19, 2026 · Founder Notes · 5 min
- [What 6 Months of Weekly Advisor Calls Taught Me About Building a Company](/blog/what-6-months-of-weekly-advisor-calls-taught-me-about-building-a-company.md) - Feb 19, 2026 · Founder Notes · 5 min
- [GPT 5.3 vs Opus 4.6 vs Gemini 3 Pro vs Kimi K2.5 -  building a GTM system](/blog/gpt-5-3-vs-opus-4-6-vs-gemini-3-pro-vs-kimi-k2-5-building-a-gtm-system.md) - Feb 10, 2026 · Founder Notes · 10 min
- [Why I Stopped Trying to Build a SaaS](/blog/why-i-stopped-trying-to-build-a-saas.md) - Feb 03, 2026 · Founder Notes · 3 min
- [I Left College and Traveled to 6 Countries in 30 Days. Here's What I Learned.](/blog/i-left-college-and-traveled-to-6-countries-in-30-days-heres-what-i-learned.md) - Jan 28, 2026 · Founder Notes · 3 min
- [How I'm thinking about fundraising vs bootstrapping](/blog/how-im-thinking-about-fundraising-vs-bootstrapping.md) - Jan 23, 2026 · Founder Notes · 6 min
- [What I think drove our growth last year](/blog/what-i-think-drove-our-growth-last-year.md) - Jan 08, 2026 · Founder Notes · 6 min
- [I turn down half my sales calls. Here's what changed.](/blog/i-turn-down-half-my-sales-calls-heres-what-changed.md) - Dec 19, 2025 · Founder Notes · 3 min
- [The 4 things that need to be true before any growth channel works](/blog/the-4-things-that-need-to-be-true-before-any-growth-channel-works.md) - Dec 12, 2025 · Founder Notes · 4 min
- [Leading a team when you've never had a boss](/blog/leading-a-team-when-youve-never-had-a-boss.md) - Nov 27, 2025 · Founder Notes · 6 min
- [We spend 50% on R&D and take zero profit. Here’s why.](/blog/we-spend-50-on-r-d-and-take-zero-profit-here-s-why.md) - Nov 14, 2025 · Founder Notes · 6 min
- [How your documentation can do the work of 3 people](/blog/how-your-documentation-can-do-the-work-of-3-people.md) - Nov 07, 2025 · Founder Notes · 7 min
- [How Your MVP Can Kill Your Growth](/blog/how-your-mvp-can-kill-your-growth.md) - Oct 23, 2025 · Founder Notes · 8 min