Sendzovo combines developer-first email delivery with recipient verification, automatic suppressions, spam-complaint monitoring and reputation protection in one platform.
POST https://api.sendzovo.com/v1/emails Authorization: Bearer em_live_xxx { "from": "billing@example.com", "to": "customer@gmail.com", "verify_before_send": true } → recipient verified → suppression checked → queued for delivery → reputation protected
Sendzovo protects the delivery infrastructure before and after every message.
Syntax, MX, disposable, SMTP and catch-all risk checks help prevent avoidable bounces before MAIL-01 sees the message.
Hard bounces, complaints, repeated soft bounces and invalid recipients are blocked from future delivery attempts.
Track complaint rate, bounce rate, provider signals, deferrals and sending consistency across customers and IP pools.
Every REST API or SMTP submission passes through Sendzovo policy checks before outbound delivery.
Bounces, complaints, authentication, verification quality and delivery history.