SendPulse

SendPulse spans marketing email, automation, chatbots, CRM, websites, and transactional SMTP. The transactional pricing is unusually generous for free SMTP volume, while paid plans add higher hourly throughput and dedicated IPs.

Judged purely as an API. What the request contract guarantees on retry, how complete the webhook event coverage is, whether suppressions are readable and writable programmatically, and how much the message log retains when something needs debugging in production.

Against high-frequency programmatic sends where a missed delivery is a product failure, SendPulse covers webhook coverage, event stream, the suppressions API, and batch sending, and does not cover idempotency keys and SDK breadth. Whether that gap matters depends on how central those are to the build.

• Idempotency keys: No
• Webhooks: Yes
• Event stream: Yes
• Operating since: Not published
• Suppressions API: Yes
• Best published rate per 1,000: Tiers not published in comparable form
• Batch sending: Yes
• SDKs: None
• Deliverability: Broad platform with SPF, DKIM, DMARC setup, SMTP relay, API sending, and paid dedicated IPs. Free transactional throughput is capped at 50 messages per hour.

Broad platform with SPF, DKIM, DMARC setup, SMTP relay, API sending, and paid dedicated IPs. Free transactional throughput is capped at 50 messages per hour.

Small teams that want free transactional SMTP volume plus optional marketing automation.

API-first teams that want the cleanest developer experience.