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SMTP RelaySend over SMTP on 587/465/2525 Email APIREST API with idempotency Email LogsEvery message & delivery event DeliverabilityBounces, complaints, reputation AnalyticsOpens, clicks, volume DomainsSPF, DKIM, DMARC

Transactional EmailReceipts, resets, alerts SaaS ApplicationsProduct notifications E-commerceOrders & shipping AgenciesEmail for many clients EnterpriseReliable app infrastructure

DocumentationGuides & quick start API ReferenceEndpoints & params SMTP DocumentationHosts, ports, TLS SDKscURL, Node, Python, PHP, .NET StatusLive system status

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Inbox / Spam TesterScore inbox-likelihood out of 10 SPF CheckerValidate an SPF record DKIM CheckerCheck a DKIM key DMARC CheckerInspect a DMARC policy BIMI CheckerVerify a BIMI record

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DKIM Checker

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Transactional email infrastructure. Your domains, your reputation, your audit trail.

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