com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a STARTTLS command first. rw2sm52519561pab.30 - gsmtp

nabble.com | 7 months ago
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Root Cause Analysis

  1. com.sun.mail.smtp.SMTPSendFailedException

    530 5.7.0 Must issue a STARTTLS command first. rw2sm52519561pab.30 - gsmtp

    at com.sun.mail.smtp.SMTPTransport.issueSendCommand()
  2. JavaMail API (compat)
    SMTPTransport.sendMessage
    1. com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2108)
    2. com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1609)
    3. com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1117)
    3 frames
  3. com.sun.jbi
    AcceptPoller.run
    1. com.sun.jbi.binding.email.protocol.send.smtp.SMTPMessageSender.sendMail(SMTPMessageSender.java:99)
    2. com.sun.jbi.binding.email.EmailBCExchangeHandler.handleExchange(EmailBCExchangeHandler.java:138)
    3. com.sun.jbi.component.toolkit.lifecycle.impl.AcceptPoller.run(AcceptPoller.java:156)
    3 frames
  4. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:722)
    1 frame