llms.txt
# HumanInbox
> HumanInbox is a LinkedIn email finder and AI outreach agent, built by the team behind MailTracker. A Chrome extension finds verified work email addresses from LinkedIn profiles, people searches and post reactions (up to 100 people at once), exports them to CSV, then writes the first outreach email, sends it from the user's own Gmail, tracks opens and manages follow-ups until the person replies. Only successfully found email addresses count against the quota.
Key facts:
- Product: LinkedIn email finder (Chrome extension) + AI outreach agent (write, send from Gmail, track opens, follow up)
- Emails are verified before being returned; failed lookups are not charged
- Pricing: Free 5 email lookups (no credit card); Starter €29/month for 100 found emails; Growth €79/month for 500
- Sends from the user's own Gmail address
- Founder: Tom Benattar (https://gethumaninbox.com/blog/author/tom-benattar), also CEO of MailTracker
- Made by the MailTracker team
## Main pages
- [Home](https://gethumaninbox.com/): product overview, pricing, FAQ
- [Blog](https://gethumaninbox.com/blog): email finder comparisons, pricing databases, follow-up playbooks
- [Author: Tom Benattar](https://gethumaninbox.com/blog/author/tom-benattar)
- [Start free](https://gethumaninbox.com/app)
## Articles
- [Gmail Export Contacts: The Complete 2026 Guide](https://gethumaninbox.com/blog/gmail-export-contacts): Learn how to do a gmail export contacts the right way in 2026. Step-by-step CSV and vCard methods, format choices, and fixes for the most common errors.
- [10 LinkedIn Outreach Tool Options Compared for 2026](https://gethumaninbox.com/blog/linkedin-outreach-tool): Compare 10 LinkedIn outreach tool options by features, pricing signals, and best-fit use cases for SDRs, recruiters, and agencies, with honest limits.
- [Email Outreach Automation: What It Is and How It Works](https://gethumaninbox.com/blog/email-outreach-automation): Learn what email outreach automation is, how it improves deliverability, and how to set up person-by-person sequences that actually get replies in 2026.
- [10 Prospect Research Tools in 2026: When to Use Each](https://gethumaninbox.com/blog/prospect-research-tools): Compare 10 prospect research tools for company data, persona signals and technographics, with use cases, limits and when each one fits your outbound workflow.
- [10 LinkedIn Email Address Finder Tools Compared for 2026](https://gethumaninbox.com/blog/linkedin-email-address-finder): Compare 10 LinkedIn Email Address Finder tools by pricing, lookup limits, Gmail sending, and accuracy caveats, with compliance notes before you buy.
- [8 Great Sales Email Subject Lines for Every Use Case](https://gethumaninbox.com/blog/great-sales-email-subject-lines): Discover great sales email subject lines for cold outreach, referrals, events, and follow-ups, with real use cases and simple testing tips to lift replies.
- [Email Lookup Free: 10 Tools Compared for Work Emails](https://gethumaninbox.com/blog/email-lookup-free): Compare 10 email lookup free tools for finding work emails, with free-plan limits, DIY methods, and verification tips to check before you send.
- [How to Track Email Opens in Gmail: A B2B Guide](https://gethumaninbox.com/blog/how-to-track-email-opens-in-gmail): Learn how to track email opens in Gmail with this practical B2B outreach guide. Improve your email campaigns and boost engagement starting today.
- [Cold Email Follow Up Template: 7 Proven Examples for 2026](https://gethumaninbox.com/blog/cold-email-follow-up-template): Use 7 proven cold email follow up template examples by stage, with personalization and timing tips to get more replies from every prospect.
- [Cold Email Subject Lines: 10 Angles and Templates for 2026](https://gethumaninbox.com/blog/cold-email-subject): Ten cold email subject line angles with adaptable templates, real examples, and tested performance tips for better outreach in 2026.
- [10 Email Finder Extension for LinkedIn Tools](https://gethumaninbox.com/blog/email-finder-extension-for-linkedin): Compare 10 email finder extension for LinkedIn tools for emails, phone data, workflows, pricing considerations, limitations, and privacy.
- [Do Follow Up Emails Work? Evidence & Best Practices](https://gethumaninbox.com/blog/do-follow-up-emails-work): Do Follow Up Emails Work. Find out if follow up emails work with real data. Learn reply-rate lift, optimal cadence, and metrics that measure genuine outbound
- [Email Going to Spam? How to Fix Deliverability Fast](https://gethumaninbox.com/blog/email-going-to-spam): Is your outbound email going to spam? Learn why legitimate messages get filtered and how to fix authentication, reputation, and sending practices.
- [10 LinkedIn Chrome Extensions Worth Using in 2026](https://gethumaninbox.com/blog/linkedin-chrome-extensions): Compare 10 linkedin chrome extensions for prospecting, research, outreach, installation, privacy, and practical LinkedIn workflows in 2026.
- [What Is Prospect Research and How Outreach Actually Works](https://gethumaninbox.com/blog/what-is-prospect-research): What is prospect research? Learn how modern teams gather signals, qualify contacts, and turn research into higher-converting outreach without bulk blasting.
- [How to Automate Follow Up Emails Without Sounding Robotic](https://gethumaninbox.com/blog/how-to-automate-follow-up-emails): Learn how to automate follow up emails with smart timing, templates, and inbox-safe rules. Step-by-step guide for SDRs, founders, and agencies in 2026.
- [How to Identify Leads in B2B Outbound: A Practical Guide](https://gethumaninbox.com/blog/how-to-identify-leads): Learn how to identify leads effectively using behavioral signals, ICP fit, and smart tools. Stop wasting time on unqualified prospects and start closing real
- [DNS Gmail Settings Guide: SPF, DKIM, DMARC Setup](https://gethumaninbox.com/blog/dns-gmail-settings): Master DNS Gmail settings for SPF, DKIM, and DMARC. Step-by-step configuration guide with practical examples for seamless Gmail sending.
- [How to Find Email Owner Details](https://gethumaninbox.com/blog/find-email-owner): Learn how to find email owner details using headers, reverse lookup tools, and verification tactics to ensure safe and accurate B2B outreach.
- [10 B2B Marketing Examples with Actionable Takeaways](https://gethumaninbox.com/blog/b-2-b-marketing-examples): Explore 10 b2b marketing examples across LinkedIn, email, content, and outbound campaigns, with strategic analysis and practical takeaways for 2026.
- [8 Cold Email Sign Offs That Get Replies](https://gethumaninbox.com/blog/cold-email-sign-off): Explore 8 cold email sign off examples by tone and role, plus personalization do’s and don’ts for more natural, effective outreach.
- [Gmail Outgoing Mail Servers Reference Guide](https://gethumaninbox.com/blog/gmail-outgoing-mail-servers): Configure Gmail outgoing mail servers with correct SMTP settings, ports, and limits. A technical reference for sales teams and Workspace admins.
- [Do 100 Cold Emails by Hand Before You Automate (and What Mine Taught Me)](https://gethumaninbox.com/blog/do-100-cold-emails-by-hand-before-you-automate): A YC partner's rule: write at least 100 cold emails by hand before you automate. Here is why, plus what 216 hand-written emails taught me that a 47-email automated sequence did not.
- [Follow Up, Then Break Up: The Breakup Email That Gets the Most Replies](https://gethumaninbox.com/blog/follow-up-then-break-up-email): Never one cold email. A YC partner's rule: two to four follow-ups, then a breakup email, which gets the highest reply rate of the sequence. Timing, three templates and my own numbers.
- [Why You're Getting Zero Replies to Your Cold Emails: YC's Debug Order](https://gethumaninbox.com/blog/zero-replies-cold-email-debug-order): Zero replies to your cold emails? A YC partner debugs it in a fixed order: right person, right company, subject line, messaging, materials, deliverability. Then the 8 rules behind it.
- [How to Find Someone's Email from LinkedIn in 2026](https://gethumaninbox.com/blog/how-to-find-someones-email-from-linkedin): Learn how to find someone's email from LinkedIn with proven profile-reading tactics, email finder tools, and verification steps that actually work.
- [10 Email Finder App Options Compared for Outreach](https://gethumaninbox.com/blog/email-finder-app): Compare 10 email finder app options by accuracy, integrations, pricing, and use case to choose the right prospecting workflow for your team.
- [Follow-Up Email in Gmail: Same Thread, Three Days Later, Written for You](https://gethumaninbox.com/blog/follow-up-email-gmail): How to send a follow-up email in Gmail the right way: reply in the same thread, keep the Re: subject, wait three business days, and let it be drafted for you when nobody answers.
- [How Long Before a Follow-Up Email? The 3-Day Rule, From Real Open Data](https://gethumaninbox.com/blog/how-long-before-follow-up-email): How long to wait before a follow-up email: real open data shows cold emails are read within the hour or not at all, so three business days is the wait. Then a week.
- [What to Write in a Follow-Up Email: 5 Real Follow-Ups and What Got Replies](https://gethumaninbox.com/blog/what-to-write-in-follow-up-email): What to write in a follow-up email: five real follow-ups sent from one founder's Gmail, the one rule they share (one new thing, one easy question, under 300 characters), and which ones got replies.
- [Best Email Finder Tools in 2026: Pricing, Accuracy & Verified Emails Compared](https://gethumaninbox.com/blog/best-email-finder-2026): Best email finder 2026: 12 tools compared on pricing, verified emails, LinkedIn and Sales Navigator support, and whether failed lookups cost credits. Sources and dates included.
- [Email Finder Pricing Database 2026: Price per Verified Email for 20 Tools](https://gethumaninbox.com/blog/email-finder-pricing-database-2026): Email finder pricing database 2026: monthly price, credits, free plans and price per verified email for 21 tools, with sources and the date each price was checked.
- [Best LinkedIn Email Finder Tools in 2026: 10 Tools Compared](https://gethumaninbox.com/blog/best-linkedin-email-finder-2026): Best LinkedIn email finder 2026: 10 Chrome extensions compared on profile and search support, Sales Navigator, verified emails, free plans and price per found email.
- [Best Email Finders for Verified Emails: Pricing & Sales Navigator Comparison](https://gethumaninbox.com/blog/best-email-finders-verified-emails-sales-navigator): Best email finders for verified emails, compared on how they verify, what a verified email costs, and which ones work with Sales Navigator. 12 tools, official pricing, September 2026.
- [Best Bulk LinkedIn Email Finders for Sales Navigator in 2026](https://gethumaninbox.com/blog/bulk-linkedin-email-finder-sales-navigator): Best bulk LinkedIn email finders for Sales Navigator in 2026: which tools still export from Sales Navigator search results, leads per export, pricing and cost per found email.
- [Email Finder Credits Explained: What Does a Valid Email Actually Cost?](https://gethumaninbox.com/blog/email-finder-credits-explained): Email finder credits explained: what a credit buys, when it is spent, why valid emails cost more than the credit price on some tools, and the credit rules of 16 tools. September 2026.
- [Email Finder Pricing Compared: Cost per Verified Email in 2026](https://gethumaninbox.com/blog/email-finder-pricing-cost-per-verified-email): Email finder pricing compared by cost per verified email, not credits: entry plans for 17 tools, which ones charge for failed lookups, and how to compute your real price.
- [Email Finders Where You Only Pay for Verified Emails](https://gethumaninbox.com/blog/email-finders-pay-only-for-verified-emails): Email finders where you only pay for verified emails: 14 tools that state a failed lookup costs nothing, their rules on catch-all and risky addresses, prices and sources.
- [LinkedIn Email Finder Accuracy: Find Rate, Verification & Bounce Rate Explained](https://gethumaninbox.com/blog/linkedin-email-finder-accuracy-bounce-rate): LinkedIn email finder accuracy and bounce rate explained: find rate vs accuracy vs deliverability, what verification checks, and what each vendor claims, labelled as claims.
- [LinkedIn Email Finder Pricing: Verified Emails & Sales Navigator Compared](https://gethumaninbox.com/blog/linkedin-email-finder-pricing-verified-emails-sales-navigator): LinkedIn email finder pricing for verified emails and Sales Navigator: entry plans, credits, per-user vs per-account billing and cost per found email for 11 tools, checked September 2026.
- [Wiza vs Findymail vs HumanInbox: Pricing, Verified Emails & LinkedIn](https://gethumaninbox.com/blog/wiza-vs-findymail-vs-humaninbox): Wiza vs Findymail vs HumanInbox compared on pricing, verified emails, LinkedIn and Sales Navigator support, and cost per found email. Official pricing checked September 2026.
- [Sales Follow-Up Statistics: The Numbers Behind the Silence](https://gethumaninbox.com/blog/sales-follow-up-statistics): The key statistics on follow-up emails and sales touches: how many contacts deals really need, how fast senders give up, and what a nudge is worth.
- [How to Automate Follow-Up Emails in Gmail (Without Sounding Like a Robot)](https://gethumaninbox.com/blog/automate-follow-up-emails-gmail): Your options for automating Gmail follow-ups compared: reminders, snoozes, mail-merge sequences and AI agents, and where each one breaks.
- [How to Follow Up After Sending a Quote or Proposal](https://gethumaninbox.com/blog/follow-up-after-sending-quote): A quote with no answer is money in limbo. The exact sequence, timing and wording to follow up on quotes and proposals without discounting reflexively.
- [How to Follow Up Without Being Annoying: Polite Persistence](https://gethumaninbox.com/blog/how-to-follow-up-without-being-annoying): The line between persistent and pushy is real but generous. How to nudge a silent thread repeatedly while staying genuinely welcome in the inbox.
- [Follow-Up Email Subject Lines That Get Opened (and Answered)](https://gethumaninbox.com/blog/follow-up-email-subject-lines): When to keep the Re: thread subject, when to change it, and 25 follow-up subject lines that earn opens without clickbait.
- [Why Deals Go Quiet: The Anatomy of a Silent No](https://gethumaninbox.com/blog/why-deals-go-quiet): Most deals do not die on a no, they die in silence. The real reasons prospects stop replying and what actually revives a quiet thread.
- [Best Time to Send a Follow-Up Email: What 216 Emails and 94 Opens Say](https://gethumaninbox.com/blog/when-to-send-follow-up-email): Best time to send a follow-up email, from real data: 216 hand-written cold emails, 94 verified opens, replies by weekday and hour. Monday and Thursday win, Friday gets nothing.
- [How Many Follow-Up Emails Is Too Many? Opens and Replies by Step, From Real Sends](https://gethumaninbox.com/blog/how-many-follow-up-emails): How many follow-up emails is too many? Opens and replies per step from a real 5-email sequence and from hand-written follow-ups: where the value stops and when to quit.
- [12 Follow-Up Email Templates That Actually Get Replies](https://gethumaninbox.com/blog/follow-up-email-templates): Copy-paste follow-up email templates for quotes, proposals, intros, invoices and ghosted threads, with notes on why each one works.
