com.sun.mail.smtp.SMTPSendFailedException: 550 SMTP authentication mandatory

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Root Cause Analysis

  1. com.sun.mail.smtp.SMTPSendFailedException

    550 SMTP authentication mandatory

    at com.sun.mail.smtp.SMTPTransport.issueSendCommand()
  2. JavaMail API (compat)
    SMTPTransport.sendMessage
    1. com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:1388)
    2. com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:959)
    3. com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:583)
    3 frames
  3. finagle-core
    MailerPecUtility.main
    1. com.MailerPecUtility.sendMail(MailerPecUtility.java:201)
    2. com.MailerPecUtility.main(MailerPecUtility.java:266)
    2 frames