Documentation

Documentation

Build a message, configure a mailer, secure it, send it, or work out what went wrong.

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Start hereSend your first emailDependency, message, mailer, verification See why it existsWhy Simple Java MailWhat it handles and when Jakarta Mail is still useful UpgradingMove to version 9.2Async failures, serialization, builder governance, TLS trust, image containment, DKIM, and S/MIME status

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01
ComposeMessages, recipients, attachments, calendars, replies, conversion
 02
ConfigureMailer builders, properties, Spring, defaults, overrides, pools
 03
ProtectTLS, OAuth2, server verification, DKIM, S/MIME, CRLF
 04
DeliverSync, async, connection reuse, batch, pools, clusters, proxy
 05
DiagnoseValidation, connection tests, inspection, logs, receipts, failures
 06
ExtendModules, CLI, MIME explorer, custom Session, custom sending

Reference pages

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BuildCapabilitiesComplete feature reference and examples BuildConfigurationJava, properties, environments, Spring, pools BuildModulesWhat each optional module adds OperateSecurityTransport, signing, encryption, input safety OperateDiagnosticsTests, inspection, debug output, failure handling IntegrateCommand-line interfaceSend, connect, validate, properties, logging UnderstandMIME and interoperabilityMultipart structures, encodings, conversions UnderstandCompare approachesSee how much each API handles for you MaintainMigration notesVersion-specific breaking changes MaintainHelp and contributeQuestions, issues, documentation, source