--- title: "Verify Work Emails With Hunter.io and an AI Agent | Prosyo" description: "An AI agent fills missing work emails from Hunter.io when people join a list, keeps only verified addresses and asks before saving them." url: "https://prosyo.com/lb/ai-agents/use-cases/verify-work-emails-hunter/" image: "https://prosyo.com/wp-content/uploads/2026/10/cropped-Prosyo-Icon-Transparent-1.png" language: "lb" --- Custom agent · New people on a list # Fill and verify missing work emails with Hunter.io before you launch Before an email campaign goes out, an agent looks up the people on your list who have no email in Hunter.io, keeps only verified addresses and asks before saving them. [Start free — 7 days](https://app.prosyo.com/) [Book a demo](https://prosyo.com/lb/) - 7 days free - No card required - Nothing sends without your yes Loved by founders, agencies and sales teams How it runs ## One request. The agent does the rest. Type it to Penny, or use it as the agent’s brief and let it run on its trigger. **Agent Penny***Run with Custom agent* When people are added to “Q4 email campaign”, find work emails in Hunter.io for anyone without one, keep only verified addresses, and ask me before saving them. 1. Starts when people are added to the list 2. Finds everyone on the list without a work email 3. Looks up each name and company domain in Hunter.io 4. Keeps verified addresses and skips the ones it could not verify 5. Asks you to approve saving the emails to the list Emails ready to save **People without an email** 12 **Verified emails found** 10 **Skipped, not verified** 2 **Waiting for you** Save 10 emails Illustrative run. Sending, paid actions and changes in other apps wait for your yes. The guide A sequence is only as good as its addresses. Send to guessed or stale emails and your bounce rate climbs, your mailbox reputation drops, and the people who would have replied never see the message. This agent closes the gap before launch: whenever people are added to a campaign list, it finds the ones without a work email, looks them up in Hunter.io and keeps only addresses Hunter could verify. ## Why a second source helps Prosyo already finds and verifies work emails during enrichment, and only saves a mailbox it is confident in. Some teams still want another source for the people that first pass could not resolve, or they have a Hunter.io plan they already use. Connecting Hunter lets an agent use it automatically, at exactly the point it matters: just before a list goes into an email campaign. ## What the agent does It wakes up when people land on the list you named. It reads who is missing an email, searches Hunter.io by name and company domain, and sorts the results into verified and not verified. It never invents an address and never guesses one from a pattern. The verified emails come back to you as one card, “Save 10 emails to the list”, and are saved only when you approve. The people it could not verify are listed by name, so you can reach them on LinkedIn instead. ## Set it up 1. Connect Hunter.io with your account. 2. Create an agent from scratch with a short brief: which list to watch, what to look up, and to keep verified addresses only. 3. Set it to run when people are added to that list, and tick Hunter.io as its app. 4. Leave saving on review, so every batch of new emails passes your eyes once. ## Good habits - Run it on the list you are about to contact, not on your whole database. Fresh lookups are more accurate and cheaper. - Keep LinkedIn steps in the same sequence, so people without a verified email still hear from you. - Check your email authentication once (SPF, DKIM and DMARC) before a big send. Good data and a healthy domain work together. **Custom agent***Custom AI agent builder* **Starts** When people are added to a list **Apps** [Hunter.io](https://prosyo.com/lb/integration/hunter-io/) **Approval** Sending, paid actions and other apps wait for your yes **Great for** Sales teams, Agencies, Recruiters **Available on** Penny Agents, Penny SDR and Penny SDR All-in [Start free — 7 days](https://app.prosyo.com/) [Book a demo](https://prosyo.com/lb/) - [How the Custom agent works](https://prosyo.com/lb/ai-agents/custom-ai-agent/) - [All agent use cases](https://prosyo.com/lb/ai-agents/#use-cases) - [Penny pricing](https://prosyo.com/lb/pricing/#penny) Apps in this use case ## Connected in a click, used on your terms Sign in once. You choose what it may do, and changes wait for your approval. [**Hunter.io**Data Find and verify work emails by name and company domain. Hunter.io + Prosyo](https://prosyo.com/lb/integration/hunter-io/) You stay in control ## Custom agent asks before it acts You choose how much it does alone. Reading and research always run straight away; anything that sends, spends or changes another app waits as a card you approve, unless you allowed it. - **Ask before every step**It asks before every step, unless you allowed that action to run on its own. - **Ask before any change**It reads and researches freely, then brings every change back to you. - **Handle routine work alone**Saving people, tagging and preparing drafts run on their own. Sending, paid actions and other apps still wait. Keep going ## Use cases that pair well with this one [New people on a listSend qualified prospects to your Airtable base, with your approvalWhen people are qualified as Fit, an agent prepares a record for each one in your Airtable base and asks before writing, so your ops tracker stays current without copy-paste.Custom agent](https://prosyo.com/lb/ai-agents/use-cases/qualified-leads-to-airtable/)[New people on a listFill missing contact details with Lusha before a call blockWhen people are added to your call list, an agent finds missing business contact details with Lusha and asks before saving them, so your call block starts with numbers, not research.Custom agent](https://prosyo.com/lb/ai-agents/use-cases/fill-contact-details-lusha/)[On demandAI account research: a sourced brief on every target accountAn agent runs deep research on each target account with Parallel and Exa, and hands you a one-page brief with priorities, news, people and a reason to reach out, every claim with its source.Custom agent](https://prosyo.com/lb/ai-agents/use-cases/ai-account-research/) [Browse every use case](https://prosyo.com/lb/ai-agents/#use-cases) FAQ ## This use case, answered Straight answers on what the agents do, what they cost and how you stay in control. **Want to see it on your market?** Book a short demo. A real person runs the agents on your own ideal customer. [Book a demo](https://prosyo.com/lb/) **Does Prosyo not find emails already?** Yes. Prosyo’s own enrichment finds and verifies work emails. Hunter.io is useful when you want a second source, or when your team already pays for it. **What happens to addresses Hunter cannot verify?** The agent skips them and tells you who they were, so you can decide whether to reach those people on LinkedIn instead. **Will it change emails people already have?** No. It only looks up people who have no email on the list. **When does it run?** As soon as people are added to the list you choose, whether they come from an import, a form, the Chrome extension or another agent. Nobody has to remember to run it. **Which apps does it use, and do I need accounts?** It uses Hunter.io, with one-click sign-in. Each app works with your own access, so the agent only sees what your account can see, and anything an app charges for is billed by that app. **Can the agent act without my approval?** Reading and research run straight away. Routine work such as saving people to a list or tagging can run alone if you allow it. Sending, paid actions and changes in other apps wait for your yes unless you explicitly allowed that action. **What does a run cost?** Each step uses AI credits like a Penny question, and you set a spending cap for each run. If a run reaches its cap, it waits for you. Paid actions such as enrichment, and charges from connected apps, are separate. **Can I change what the agent does?** Yes, in plain words. Edit the brief, attach a skill such as your own playbook, tick or untick apps and change what needs approval. The next run follows the new instructions, and finished work stays saved. **Which agent runs it?** An agent you create from scratch with this use case as its brief. It takes a few minutes: name it, paste the request, pick the trigger and apps, and choose what needs approval. **How do I see what the agent did?** Every run comes with a plain-English report of what it did, what it cost and anything waiting for you. Results show as formatted answers, tables or diagrams, and you get a notification when a run finishes or needs your approval. **Which Prosyo plan do I need?** Agents come with the Penny Agents, Penny SDR and Penny SDR All-in plans: 5, 10 or 20 agents. Every workspace starts with a 7-day free trial, no card required. ## Your next 10 meetings are already on LinkedIn. 7 days free, no card. Pay later and change your mind? Full refund within 7 days. [Start free — 7 days](https://app.prosyo.com/) [See pricing](https://prosyo.com/pricing/) - 7 days free - No card required - Cancel in two clicks