Plans & limits

Plans

	Free	Pro
Price	$0	$29 / month
SMTP connections	1	Unlimited
API keys	1	Unlimited
Emails per day	100	No platform cap — your provider's limits apply
POST /v1/send	✓	✓
POST /v1/enqueue	—	✓
POST /v1/send/batch	—	✓
Audiences	—	✓
Templates	3	Unlimited
Forms	✓	✓
Email log retention	7 days	90 days

Upgrade or manage your subscription on the Account page. Using a Pro-only endpoint on the Free plan returns 403 FEATURE_NOT_AVAILABLE.

Request limits

These apply on every plan.

Limit	Value
Recipients per /send request (to + cc + bcc)	10
recipients per batch	1,000 (use an audience for more)
Members added per request	10,000
Audience members per list request	1,000 (default 100)
Template subject	998 characters
Audience and template names	255 characters

Connection quotas

Separately from your plan, each connection has its own daily or hourly quota that you set to match your provider. It is enforced on every plan.