Support » Plugin: WP Mail SMTP by WPForms » Sender address rejected: not owned by user

  • Resolved cvjmoh

    (@cvjmoh)


    Hi,

    I’m using this plugin on a wordpress MU installation. It has been globally activated for all sites.

    When trying to send the test e-mail it fails. Looking at the log I find the following lines:
    2019-11-03 21:56:58 SERVER -> CLIENT: 235 2.7.0 Authentication successful
    2019-11-03 21:56:58 CLIENT -> SERVER: MAIL FROM:
    2019-11-03 21:56:58 SERVER -> CLIENT: 250 2.1.0 Ok
    2019-11-03 21:56:58 CLIENT -> SERVER: RCPT TO:
    2019-11-03 21:56:58 SERVER -> CLIENT: 553 5.7.1 : Sender address rejected: not owned by user toxxxxxxxxxx
    2019-11-03 21:56:58 SMTP ERROR: RCPT TO command failed: 553 5.7.1 : Sender address rejected: not owned by user toxxxxxxxx
    2019-11-03 21:56:58 CLIENT -> SERVER: QUIT
    2019-11-03 21:56:58 SERVER -> CLIENT: 221 2.0.0 Bye
    2019-11-03 21:56:58 Connection: closed
    2019-11-03 21:56:58 SMTP Error: The following recipients failed: toxxxx: : Sender address rejected: not owned by user toxxxxxxx

    xxxx disguises the actual e-mail address.
    Any Idea why both the MAIL FROM and the RCPT is empty? Or any idea where this error comes from?

Viewing 6 replies - 1 through 6 (of 6 total)
  • Plugin Support Sanjeev Aryal

    (@sanzeeb3)

    Hi @cvjmoh,

    From the error message, it seems the issue with the sender’s address verification or with the user that owns the sender (MAIL FROM) addresses. Please contact your mail server support to figure out the issue.

    An additional alternative (if either your host is unable to find a cause or if you’d simply like a different option) is to use one of the other mailer options within WP Mail SMTP. Here’s our documentation for each of the available mailers.

    Thanks!

    Hi,

    the strange Thing is: the very same Settings in Thunderbird work flawlessly.

    Why is there no from or rcpt to address shown in the logs? Is that normal?

    • This reply was modified 2 months, 1 week ago by cvjmoh.
    Plugin Support Sanjeev Aryal

    (@sanzeeb3)

    Hi @cvjmoh,

    I apologize for the delayed response. It might be that your login/pass is correct so the authentication is a success. However, your server may be configured in a way that allows only certain email addresses, and the FROM address in your SMTP request does not equal what is configured on a server. Thunderbird might be using different parameters or gets server config under the hood and adjust its own settings.

    I hope this information helps!

    Plugin Support Sanjeev Aryal

    (@sanzeeb3)

    Hi @cvjmoh – We haven’t heard from you in about a week, so I’m going to go ahead and mark this ticket resolved. If you still have questions, though, please feel welcome to continue the conversation.

    Hi,

    the login equals the E-Mailaddress. So there is no way it was mixed up.
    What kind of parameterset were you thinking of that might be different?

    Plugin Support Sanjeev Aryal

    (@sanzeeb3)

    Hi @cvjmoh,

    I apologize for any confusion. The email address in your SMTP request is not matching the one configured in the server. Thunderbird might be getting the correct server config under the hood. Please contact your web host, they will be able to look into this.

    I hope this helps!

Viewing 6 replies - 1 through 6 (of 6 total)
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