Skip to content
ZapSMTPZapSMTP
Product
Email APISend from your stack with SDKs or HTTPSMTP relayConnect the mailer you already useInbound emailReceive conversations and repliesSandboxTest delivery events before real sendsDeliverabilityFind the signals behind sending problems
Templates
Developers
Developer hubSDKs, frameworks, CLI and OpenAPIDocumentationGuides and the quickstartAPI referenceEvery endpoint with examplesSDKs & frameworksNode.js, Python, PHP, Go, Ruby, Java, .NETAI toolsMCP server, Agent Skills, CLI, llms.txtMigration guideMove from another provider safely
Pricing
Log inStart for free

Product

Email APISMTP relayInbound emailSandboxDeliverabilityTemplatesPricing

Developers

Developer hubDocumentationAPI referenceSDKs & frameworksAI toolsMigration guide
Log in
Get startedQuickstartDashboard tourSDKs and OpenAPIAI toolsRecipesMigrating to ZapSMTP
SendingSending emailDomains & DNS setupTemplates and variablesEmail template editorSMTP relay
Events & dataWebhook eventsClick actionsTracking and analyticsReceiving email
OperationsDeliverability guideTesting & simulatorErrors, limits & pagingTeams & client accounts
API referenceEmailsDomainsWebhooksClick actionsTemplatesVariablesModules, images & timersReceived emailsInbound setupSuppressionsStatistics
TotalsTime seriesBreakdownMetrics by domain, stream, tag or provider
Keys & SMTP credentialsLogs & usageSimulator & IPs
OpenAPI 3.1 specllms.txt
Runs examples for real against your account. Test keys only; kept in this tab, never stored on our side. Get a key
ZapSMTP / Docs / API reference

Statistics

Counts for the window you ask for, limited to your plan’s log retention.

GETTotals/v1/statsEvent counts by status over the last N hours (live traffic only)..GETTime series/v1/stats/timeseriesEvent counts by status in time buckets..GETBreakdown/v1/stats/breakdownPer-provider delivery, bounce classes, engagement and top clicked links..GETMetrics by domain, stream, tag or provider/v1/metricsDelivery and engagement of live mail by sending domain, stream, tag or mailbox provider, with rates and a time series..
ZapSMTPZapSMTP

The email API for everything your product sends.

Product

  • Email API
  • SMTP relay
  • Templates
  • Inbound email
  • Sandbox
  • Deliverability
  • Pricing

Build

  • Developer hub
  • Documentation
  • API reference
  • SDKs & frameworks
  • AI tools
  • CLI
  • OpenAPI
  • Migration

Resources

  • Domain checker
  • Changelog
  • Compare services
  • Contact and support

Company

  • About
  • Security
  • Brand assets
  • Privacy
  • Terms
© 2026 ZapSMTP
  • Acceptable use
  • DPA
  • Subprocessors
  • Cookies