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faq:email:smtp_error_please_authenticate_before_sending_email [2015/07/28 16:05] (current)
vikki created
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 +===== SMTP Error: Please authenticate before sending email =====
 +The following shows the typical error from the SMTP session using mail client such as Outlook or Outlook Express:\\
 +   The message could not be sent because the server rejected the sender'​s e-mail address. The sender'​s e-mail
 +   ​address was user@domain.tld . Subject '​Subject',​ Account: '​mail.domain.tld',​ Server: '​mail.domain.tld',​
 +   ​Protocol:​ SMTP, Server Response: 451 user@domain.tld please authenticate before send', Port: 25, Secure(SSL):​
 +   No, Server Error: 451, Error Number: 0x800CCC78
 +The error occurs due to user was trying to send the email out without being authenticated first by downloading with POP3 or login with Webmail.\\
 +  * Download the email first to get authenticated,​ don't just click on the "​Send/​Recv"​ button on Outlook Express. Instead, click and hold on the "​Send/​Recv"​ button, select "​Receive All" first.
 +  * Or, you may turn the SMTP authentication ON in your profile and use port 587.
faq/email/smtp_error_please_authenticate_before_sending_email.txt ยท Last modified: 2015/07/28 16:05 by vikki