WHEN TO CONSIDER IT
Consider when the API Starter feature set covers your sending workload.
Marketing + transactional
Email API and SMTP service with a separate marketing product and tiered delivery features.
WHEN TO CONSIDER IT
Consider when the API Starter feature set covers your sending workload.
WHAT TO CHECK FIRST
Inbound processing and webhooks appear in Pro; marketing pricing is a separate product page.
Editorial interpretation of the sourced facts; not hands-on testing.
Reviewed pricing does not establish a separate data or attachment transfer rate. This is not confirmation that all such charges are zero.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed billing materials do not fully establish recipient, failed-attempt and inbound counting rules.
Reviewed 2026-09-08
Reviewed source 1 ↗The reviewed pricing does not establish all unused-allowance or prepaid-credit expiry rules.
Reviewed 2026-09-08
Reviewed source 1 ↗No email-specific numerical contractual uptime commitment was established in the reviewed materials.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗Custom sending domains are documented, but a numerical domain allowance was not established.
Reviewed 2026-09-08
Reviewed source 1 ↗Reviewed source 2 ↗Reviewed 2026-09-08. Values are taken from official materials; plan restrictions may apply. Delivery speed, observed uptime and inbox placement have not been independently measured.
A customer messaging platform with transactional email API documentation.
300 emails/day
Email delivery and editing tools with API, SMTP and marketing features.
6,000/month; 200/day
Hosted open-source platform for transactional email, campaigns and automation.
1,000 emails/month; Plunk branding.