Your applications.
Your SMTP infrastructure.

Send through your own Azure-hosted PUNCH 99 mail server. Authenticated SMTP and a straightforward HTTPS API share one encrypted queue, customer quotas and delivery history. No Brevo, SendGrid, or other delivery relay.

Pilot deployment: checking service readiness. External delivery must be verified before production campaigns or paid activation.

SMTP for your apps

Host: smtp.punch99.com
Port 465: implicit TLS
Port 587: STARTTLS required
Username: your customer ID
Password: your customer API key

Only approved sender addresses can send. Unauthenticated relay is refused.

An API you can build on

POST /v1/send queues email.
GET /v1/messages/{id} tracks outcomes.
GET /v1/account shows quota usage.
GET /v1/suppression lists blocked recipients.

A queued response is not proof of inbox delivery. Check each recipient’s outcome.

Customer onboarding

Contact sales to register your business, verify a sender domain, agree a recipient quota and obtain a scoped key. Paid activation follows a successful delivery and domain-authentication check.

Secure pilot: up to 50 recipients per message. Text, HTML and secure download links. Attachments are not enabled yet.

Queue your first message

curl https://smtp.punch99.com/v1/send \
  -H 'Authorization: Bearer YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -H 'Idempotency-Key: welcome-123' \
  -d '{"from":"approved@your-domain.com","to":["person@example.com"],"subject":"Welcome","text":"Welcome to your private workspace."}'

Check your account

The key stays in this page’s memory and is sent only to this PUNCH 99 server. It is not saved in browser storage.