Site suddenly stopped sending mails

  • Resolved ddas

    (@ddas)


    5 years, 8 months ago

    I have my new site up and running, and all was running great, and I went public with the membership, then all of a sudden, noticed e-mails from the site had stopped over a few days. I went into Easy WP SMTP and found errors. They look like this:

    CLIENT -> SERVER: EHLO mydomain.com
CLIENT -> SERVER: AUTH LOGIN
CLIENT -> SERVER: cHJlbWllcnBhcsdfgsdfoZXNjbC5jb20=
CLIENT -> SERVER: VH1iTsdfgdsI3UQ==
CLIENT -> SERVER: MAIL FROM:<[email protected]>
CLIENT -> SERVER: RCPT TO:<[email protected]>
SMTP ERROR: RCPT TO command failed: 550 5.1.0 <[email protected]>: Sender address rejected: User unknown in relay recipient table
CLIENT -> SERVER: QUIT
SMTP Error: The following recipients failed: [email protected]: <[email protected]>: Sender address rejected: User unknown in relay recipient table

    [note: precise e-mail addresses and some of the random strings of characters have been replaced]

    Can anyone help me understand how to fix this?

Viewing 3 replies - 1 through 3 (of 3 total)
  • Thread Starter ddas

    (@ddas)

    Update for other people who may stumble across this: my e-mail provider has told me that this error occurred because [email protected] is not an actual e-mailbox at my domain. They tell me I need to create the actual e-mailbox.

    I will be doing that today, and hope that will resolve the problem.

    Hi, I am also curious to know if it fixes your issue.

    Thank you

    • This reply was modified 5 years, 8 months ago by mbrsolution.
    Thread Starter ddas

    (@ddas)

    Yes, this definitely fixed my issue. Since creating a real mailbox then putting its credentials into Easy WP SMTP, e-mail sending has worked perfectly for the past two weeks.

    The e-mail host for this particular site is Rackspace, FYI.

Viewing 3 replies - 1 through 3 (of 3 total)
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