javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. jm5sm18410921pbc.1

java-samples.com | 3 months ago
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    Sending Email from Java application (JavaMail sample program)

    java-samples.com | 3 months ago
    javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. jm5sm18410921pbc.1
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    Unable to connect to SMTP Port no 465

    Stack Overflow | 3 years ago
    javax.mail.MessagingException: Could not connect to SMTP host: smtp.bizmail.yahoo.com, port: 465
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    how to solve send email action in jsp

    Stack Overflow | 4 years ago | tonberry
    javax.mail.MessagingException: 530 5.7.0 Must issue a STARTTLS command first. ay5sm8087291pab.1
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    javax.mail.MessagingException: 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
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    Sending Mail using Java (Java API forum at JavaRanch)

    coderanch.com | 1 year ago
    javax.mail.MessagingException: Could not connect to SMTP host: 10.40.9.50, port: 25, response: 421

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    Root Cause Analysis

    1. javax.mail.MessagingException

      530 5.7.0 Must issue a STARTTLS command first. jm5sm18410921pbc.1

      at javax.mail.Transport.send0()
    2. JavaMail API
      Transport.send
      1. javax.mail.Transport.send0(Transport.java:218)
      2. javax.mail.Transport.send(Transport.java:80)
      2 frames
    3. in.xyz
      SimpleSendEmail.main
      1. in.xyz.SimpleSendEmail.main(SimpleSendEmail.java:47)
      1 frame