Transactional email API
Email API for developers in Vietnam and worldwide
Send transactional email with one HTTPS call. Calmo handles domain authentication, delivery, bounces, suppressions and webhooks, with pricing in VND and USD.
Send an email
curl https://api.calmo.email/v1/emails \
-H "Authorization: Bearer ck_live_..." \
-H "Content-Type: application/json" \
-d '{
"from": "Acme <hello@acme.vn>",
"to": "customer@example.com",
"subject": "Welcome to Acme",
"html": "<p>Xin chào!</p>"
}'