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  • Unable to locate provider for protocol: smtp
    via Stack Overflow by Nimchip
    • org.springframework.mail.MailSendException: Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.1 Client was not authenticated at org.springframework.mail.javamail.JavaMailSenderImpl.doSend([spring-context-support-3.2.2.RELEASE.jar:3.2.2.RELEASE]
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