# Za-zu Blog ## Docs - [Send more effective cold email](https://za-zu.mintlify.app/home.md): Most outbound falls flat because of avoidable mistakes. Everything we write is designed to help you send emails that land meetings, close deals, and grow revenue. - [The Cold Email Handbook](https://za-zu.mintlify.app/handbook/cold-email/intro.md): Learn how to master cold email outreach from 0 to $1M ARR. A comprehensive playbook on infrastructure, copywriting, and AI-powered personalization at scale. - [Why Cold Email Works So Well](https://za-zu.mintlify.app/handbook/cold-email/why-cold-email-works.md): Why cold email is a high-ROI growth channel, when it works, and the principles behind campaigns that drive pipeline. - [Writing Great Emails](https://za-zu.mintlify.app/handbook/cold-email/writing-great-emails.md): A practical guide to writing cold emails that get replies—targeting, persuasive structure, tone and jargon, examples, and subject lines. - [The Infrastructure](https://za-zu.mintlify.app/handbook/cold-email/the-infrastructure.md): Step-by-step deliverability setup: adjacent domains, SPF/DKIM/DMARC, inbox creation, and warming so emails reach people, not their spam folders. - [Sending Personalized Outbound at Scale](https://za-zu.mintlify.app/handbook/cold-email/personalizing-at-scale.md): Use AI to personalize cold emails and run scalable campaigns—templates, prompting, word shuffling, and optimization. - [Launching Your Campaigns](https://za-zu.mintlify.app/handbook/cold-email/launching.md): From setup to send: how to launch cold outbound campaigns, pick a sequencer, and start getting replies. - [How to Get Your Cold Emails Out of Spam — The Guide](https://za-zu.mintlify.app/how-to-get-out-of-spam.md): And how to prevent getting there in the first place. - [What Makes a Good Cold Email?](https://za-zu.mintlify.app/what-makes-a-good-cold-email.md): This guide teaches you how to write cold outbound campaigns that convert. - [The right way to use AI in cold email](https://za-zu.mintlify.app/the-right-way-to-use-ai-in-cold-email.md): AI is the most powerful tool you can use to send effective cold emails at scale. But there are a number of do’s and don’ts to consider. - [Why Your Follow-Up Email Aren’t Working—And How To Fix Them](https://za-zu.mintlify.app/follow-ups-arent-working-how-to-fix.md): Your follow-up emails probably don’t work as well as they should. This article explains how to increase conversion rate on your follow-ups in cold outbound campaigns. - [Crafting the right tone for your cold outbound](https://za-zu.mintlify.app/crafting-the-right-tone-for-your-cold-outbound.md): This guide teaches you how to write cold emails that convert. You’ll do this by using a tone that sounds more like a like-minded peer, not a stiff salesperson. - [How to Avoid Red Flags in Cold Email (And Plant Green Ones Instead)](https://za-zu.mintlify.app/how-to-avoid-red-flags-in-cold-email-and-plant-green-ones-instead.md): Getting results from cold email depends almost entirely on avoiding people's internal spam filters. Learn how. - [Thoughtfulness Through Inference: A New Approach to Cold Email Personalization](https://za-zu.mintlify.app/thoughtfulness-through-inference-a-new-approach-to-cold-email-personalization.md): Drive more cold email conversion by using AI to make thoughtful inferences. - [Real Connections](https://za-zu.mintlify.app/real-connections.md): Not all overlaps are worth mentioning in cold emails. The good ones are rare, specific, relevant, and authentic. If you wouldn't be excited talking about it in person, don't put it in the email. Here's how to spot the difference. - [How "Pain Sniffing" Can 5x Your Cold Outbound Response Rate](https://za-zu.mintlify.app/how-pain-sniffing-can-5x-your-cold-outbound-response-rate.md): Use pain sniffing, an alternative to persona-based targeting, to improve your cold email conversion. - [How to use debate principles for higher-converting cold emails](https://za-zu.mintlify.app/how-to-use-debate-principles-for-higher-converting-cold-emails.md): There’s one gold mine of argument insights most people don’t use for cold outbound: speech and debate. This article explains how you can use those insights in your cold outbound. - [The cold email that got Snapchat’s CEO to reply to a high school programmer](https://za-zu.mintlify.app/great-cold-emails-snapchat.md): **TL;DR:** _This is edition #001 in our series breaking down great cold emails. In this edition, a high schooler sends a short cold email to Evan Spiegel, Snapchat’s CEO, and gets a positive same-day reply. Below we’ll show you the email and what you can learn from it._ - [The cold email that got a famous VC to reply to an unknown startup](https://za-zu.mintlify.app/great-cold-emails-calacanis.md): Edition #002: A startup founder cold emails Jason Calacanis and gets a same-day reply. - [The famous 1993 cold email to Bill Gates](https://za-zu.mintlify.app/great-cold-emails-gates.md): Edition #003: Journalist John Seabrook cold emails Bill Gates and gets a reply in 18 minutes. - [More Examples of Great Emails](https://za-zu.mintlify.app/more-examples.md): I’m sharing more examples of emails that have performed well for friends, so you can get some inspiration for what a good cold email might look like. - [The Practical Guide to Email Deliverability](https://za-zu.mintlify.app/practical-guide-to-email-deliverability.md): Cold outbound doesn't work if your emails don't hit the right inboxes. This is a guide to setting up an effective deliverability system for your campaigns. - [Why Open Tracking is Broken—and What to Do Instead](https://za-zu.mintlify.app/open-tracking-is-broken.md): The technology relies on hidden images that spam filters hate, and Apple Mail loads them automatically anyway. Here's why the best email senders skip tracking entirely—and what actually works for deliverability. - [How to Choose Perfect Domains for Cold Email: A Simple Guide](https://za-zu.mintlify.app/choosing-domains.md): Domain names are your first impression in cold email. .com domains get better deliverability than trendy .io or .net extensions. Here's the simple rule: if you want to be treated like a trusted sender, act like one. Start with the right domain. - [How To Set Up Your Domains for Cold Outbound (SPF, DKIM, DMARC)](https://za-zu.mintlify.app/domain-setup.md): Domain setup is the foundation of cold email deliverability. SPF, DKIM, and DMARC aren't optional—they're what separates emails that land in inboxes from those that disappear into spam. Here's how to set them up in under an hour. - [Word Shuffling](https://za-zu.mintlify.app/word-shuffling.md): Sending identical emails triggers spam filters. Word shuffling automatically varies your text—just add [Hey, Hi, Hello] alternatives and Za-zu picks different ones each time. Simple, effective, and keeps your emails looking natural to ESPs. - [Level Up Your Cold Outreach with Campaign Stacking](https://za-zu.mintlify.app/level-up-your-cold-outreach-with-campaign-stacking.md): Most people send cold outbound following the same predictable pattern. Campaign stacking is a better tactic that’ll help you convert more clients. - [Why Most Startup Sales Teams Are Inefficient (And How To Improve Yours)](https://za-zu.mintlify.app/the-modern-startup-sales-team.md): Most startup sales teams are inefficient. This article presents a new framework for building sales teams that generate millions in pipeline (and revenue). - [1,000 Emails a Day](https://za-zu.mintlify.app/1000-emails-a-day.md): Most B2B companies aren't growing as fast as they could. Here's why you should be sending 1,000 cold emails daily—and exactly how to set it up in 15 hours to book 120+ meetings per month. - [Cold Email and Spam](https://za-zu.mintlify.app/cold-email-and-spam.md): Cold email isn't spam by default. The difference? Spam is irrelevant copy-pasted emails to mass groups. Good cold email is relevant messages to specific people. Here's how to send thousands of personalized emails without being spam. - [Don’t get AI to write emails. Get it to fill in the blanks.](https://za-zu.mintlify.app/dont-get-ai-to-write-emails-get-it-to-fill-in-the-blanks.md): AI can’t write cold emails that convert—but it can power personalization. Learn how to use AI to fill in the blanks, scale outreach, and boost replies. - [What's the best cold email platform?](https://za-zu.mintlify.app/on-alternatives.md): Smartlead and Instantly work, but they're slow, clunky, and force you to write code. I built Za-zu because I got so frustrated with them. Here's why Za-zu is cleaner, simpler, and does the hard work automatically—so you don't have to become a deliverability expert. - [How cold calling can unlock better messaging for your startup](https://za-zu.mintlify.app/how-cold-calling-can-unlock-better-messaging-for-your-startup.md): Cold calling isn’t just for selling—it’s the fastest way to validate your startup’s messaging. Learn how to test positioning, uncover customer language, and refine copy before spending on ads or cold email. ## OpenAPI Specs - [openapi](https://za-zu.mintlify.app/api-reference/openapi.json) This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.