Integrations

Plugs into your stack

Verify emails wherever they live, your CRM, your signup form, your automation tool.

CRM and email platform integrations

Connect, verify your contacts, and push clean results back, all without CSV exports.

Brevo

Verify your Brevo contacts before you hit send.

HubSpot

Clean HubSpot contacts, better pipeline and better inbox placement.

Salesforce

Verify Salesforce leads and contacts before your team emails them.

Mailchimp

Verify your Mailchimp audience before the next campaign goes out.

PlusVibe

Verify cold email leads before they burn your sending domains.

Klaviyo

Clean your Klaviyo list before it costs you the inbox.

ActiveCampaign

Verify your ActiveCampaign contacts before your automations do.

Pipedrive

Bad emails in Pipedrive are dead deals in your pipeline.

Zoho CRM

Clean leads in, clean pipeline out.

Constant Contact

A newsletter list is only as good as the addresses in it.

GetResponse

Verify before the autoresponder fires.

Keap

Automations only work if the address does.

Intercom

Onboarding emails that actually arrive.

ConvertKit

Clean your ConvertKit list before your next broadcast.

beehiiv

Grow the newsletter, not the bounce rate.

Apollo

Verify your Apollo prospects before you sequence them.

Instantly

Never send a cold campaign to an unverified list.

Smartlead

Clean leads in, domain reputation intact.

lemlist

Personalised outreach deserves a verified list.

GoHighLevel

Clean contacts across every GoHighLevel sub-account.

Automation platforms

Use the platforms you already love. Mailthentic exposes triggers (job completed, job failed, credits low) and actions (verify single email).

Zapier

1,000+ apps. Triggers on job completion or failure; one-click "Verify email" action for any incoming row.

Coming soon App listing is under review.

Until then, use the Webhook trigger and REST API via Zapier's "Webhooks by Zapier" + "Code by Zapier" actions, works the same.

Make.com (formerly Integromat)

Visual scenario builder. Use Mailthentic's webhook subscription to trigger flows on job completion; HTTP module to call the verify API.

Coming soon App listing is under review.

Generic webhook + REST API modules already work today.

Webhook events

Every Mailthentic account can register webhook URLs to receive events in real time. Configure them in Settings → Event Webhooks.

Event	When it fires
job.completed	Bulk or single verification job finished successfully.
job.failed	Job hit an unrecoverable error.
credits.low	Credit balance crosses below 10% of last top-up.
credits.exhausted	Balance hits zero.
test.ping	Manual test event from the Settings page (use this to validate setup).

Example payload (job.completed)

{
  "event": "job.completed",
  "delivery_id": "8c4a2d1e-1234-...",
  "timestamp": "2026-05-10T12:00:00.000Z",
  "data": {
    "job_id": 12345,
    "uuid": "7d70b6c0-90d8-...",
    "label": "Q2 Campaign List",
    "original_filename": "leads.csv",
    "status": "done",
    "total_rows": 1500,
    "unique_rows": 1487,
    "processed_rows": 1487,
    "valid_count": 1234,
    "risky_count": 87,
    "invalid_count": 122,
    "unknown_count": 44,
    "credits_refunded": 44,
    "created_at": "2026-05-10T11:42:18.123Z",
    "finished_at": "2026-05-10T12:00:00.000Z"
  }
}

Verifying signatures

Each delivery includes X-Webhook-Signature (HMAC-SHA256 of the raw body, hex-encoded) and X-Webhook-Event with the event name. Compute the same HMAC on your side using your endpoint's secret to verify authenticity.

REST API

For everything else, use the API directly. JSON in, JSON out. API keys live under Settings → API Keys.

Read the API docs