Mail sending failed_Client was not authenticated to send anonymous mail during MAIL FROM
Error trace:
Caused by: com.sun.mail.smtp.SMTPSendFailedException: 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
Please note that, this is not an issue with the application but with the outgoing mail server/mail account.
Fix:
In your mail server, ensure that the option to send as anonymous user is enabled. Refer below links,
.Once done, please restart the application and then try to send out email and check if this works.
If you still have trouble, please contact Microsoft team with this error. Thank you for your understanding.
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