All integrations Marketing

ActiveCampaign + MailKite

ActiveCampaign is a marketing automation and CRM platform. Use MailKite's SMTP for transactional email and ActiveCampaign for marketing sequences, or receive inbound email to trigger automations.

What you need

A verified domain with SPF + DKIM published
Your API key (mk_live_…)
ActiveCampaign account with API access

Send email

Use MailKite SMTP for transactional email. ActiveCampaign handles marketing sequences and automations.

smtp-config

# ActiveCampaign → Settings → Email SMTP
# Or configure in your app:

SMTP Host: smtp.mailkite.dev
SMTP Port: 587
SMTP Username: mailkite
SMTP Password: mk_live_...
From: hello@yourdomain.com

Receive inbound email (optional)

Point your domain's webhook to this handler. Inbound email adds the contact and triggers an ActiveCampaign automation.

handle-inbound.ts

// Receive inbound email → trigger ActiveCampaign automation
const AC_API = 'https://youraccount.api-us1.com/api/3';

async function handleInbound(email) {
  // Add or update contact
  const contactRes = await fetch(`${AC_API}/contacts`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Api-Token': process.env.AC_API_TOKEN,
    },
    body: JSON.stringify({
      contact: {
        email: email.from,
        firstName: email.from.split('@')[0],
      },
    }),
  });
  const contact = await contactRes.json();

  // Trigger automation via webhook
  await fetch(`${AC_API}/automations/${process.env.AC_AUTOMATION_ID}/trigger`, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Api-Token': process.env.AC_API_TOKEN,
    },
    body: JSON.stringify({
      contact: { id: contact.contact.id },
      eventData: { subject: email.subject, body: email.text },
    }),
  });

  return { ok: true };
}

Test it

terminal

curl -X POST https://your-worker.example.com/mailkite-inbound \
  -H "Content-Type: application/json" \
  -d '{"from":"subscriber@example.com","to":"hello@yourdomain.com","subject":"Unsubscribe request","text":"Please remove me."}'

Troubleshooting

API tokens are under Settings → Developer → API Access.
Automations must have a webhook trigger configured before they can be triggered programmatically.
The api-us1 subdomain varies by account region — check your ActiveCampaign URL.

See the SMTP relay docs for the full connection reference, or all integrations for other platforms.