javax.mail.MessagingException

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    • javax.mail.MessagingException: 501 Syntactically invalid HELO argument(s) > at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1363) at com.sun.mail.smtp.SMTPTransport.helo(SMTPTransport.java:838) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:375) at javax.mail.Service.connect(Service.java:275)

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