[SOLVED] com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.0 Must issue a STARTTLS command first

Error added: 2014-08-30T10:06:07Z

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Answer 2232 (50.0% helpful)

You might have put
props.put("mail.smtp.starttls.enable", true);
instead of
props.put("mail.smtp.starttls.enable", "true");
or something like that.

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