Brevo

Brevo (formerly Sendinblue) bundles transactional, marketing, CRM, and SMS. The 300-emails-per-day free tier is one of the most generous in the market. Best as an all-in-one for small businesses; pure-API users may find the surface broader than they need.

Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.

Against behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue, Brevo covers scheduling, event stream, and the suppressions API, and does not cover operating track record and multi-tenant support. Whether that gap matters depends on how central those are to the build.

• Scheduling: Yes
• Event stream: Yes
• Deliverability: Reliable for marketing and transactional; per-day free-tier limits prevent spam abuse.
• Operating since: 2012
• Suppressions API: Yes
• Best published rate per 1,000: Tiers not published in comparable form
• Multi-tenant: No
• Free tier: 300/day permanent
• Starts at: $9/mo for 5,000 emails

Reliable for marketing and transactional; per-day free-tier limits prevent spam abuse.

Small businesses that need email plus marketing plus SMS in one place.