Emails checked the moment you download them — not guessed last quarter.
Most databases hand you addresses that were 'verified' whenever the record was scraped, then quietly rot. Argorant runs a live SMTP check on every contact at the moment of export, so the list you load into your sequencer is deliverable today — and the bounces that wreck your sending reputation never leave the building.
A real mailbox check, step by step.
No pattern guessing: we validate syntax, confirm MX records, open an SMTP handshake, check the mailbox accepts mail, and probe for catch-all domains.
Valid, catch-all, or invalid — never a shrug.
Every contact carries a clear status, not a vague confidence score: valid is safe to send, catch-alls are flagged for your call, invalid never exports.
“We run cold outbound for a dozen clients. Argorant replaced two tools and the bounce complaints just stopped.”Founder of a bootstrapped outbound agency · Lisbon, Portugal
Lower bounces, a healthier domain, more replies.
Stale lists bounce at 15–20% and throttle deliverability. Verifying at export drops hard bounces toward 1% and keeps your sender reputation intact.
Everything a revenue team needs.
Describe a market and build the right buyer list.
Check emails before export so your team avoids stale addresses.
Build lists across 184 countries from one workflow.
Move verified contacts into CSV, Smartlead, HubSpot, or Salesforce.
Let Claude, GPT, and your own workflows prepare lead lists.
Start free, then scale — invalid results cost zero credits.
Revenue teams that stopped tolerating bounces.
From the blog
A field guide to list definition: why industry filters lie, why seniority is a pattern set rather than a dropdown, how to size a list backward from sending capacity, and the preview-first workflow that catches bad filters before you pay for them.
B2B contact data decays the moment it's collected. Here's why the timing of verification matters more than the method, what an SMTP probe actually proves, and how pay-per-valid pricing changes the buyer's math.
A practical walkthrough of agent-driven list building: connect Claude to Argorant over MCP, scope a list with free counts and previews, then reveal and export only what survives scrutiny.
Start with verified contacts today.
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