Quickstart
Create an account and inbox, then validate and send your first email.
Create an account and an inbox
Sign up
Create an account, open the inbox in the workspace, and create an available @mailly.site address.
Check receiving
The address receives and sends mail. Send a test message to it and check that a conversation appears in the inbox.
Optional: use your own domain
Add and verify your domain in Domains. Sending and receiving are configured separately; see Custom domains.
Validate before your first send
Get your API key from Integration in the workspace and store it as MAILLY_API_KEY on your server. Replace both addresses with your own. dryRun validates parameters without sending or charging usage.
curl https://api.mailly.site/send-email \
-H "Authorization: Bearer $MAILLY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"fromEmail": "your-inbox@mailly.site",
"to": "you@example.com",
"subject": "Hello from my agent",
"text": "Your first email is ready.",
"dryRun": true
}'Before sending for real, check your usage balance or included email count, then remove dryRun. Continue with Sending email.