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Error Message on sending email

Discussion in 'E-mail Discussions' started by Marcelo Lemos, Jul 15, 2015.

  1. Marcelo Lemos

    Marcelo Lemos Registered

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    Dear all,

    I´m checking by Mail Delivery Reports
    that lot of messages are showing the following results:

    SMTP error from remote mail server after end of data: 421-4.7.0 [77.93.204.251 15] Our system has detected an unusual rate of\n421-4.7.0 unsolicited mail originating from your IP address. To protect our\n421-4.7.0 users from spam, mail sent

    What is it mean? How to solve that?

    Thank you

     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello :)

    That message indicates the remote mail server rejected the message sent from your server due to the number of emails coming from your server. Have you had any recent issues with spammers abusing your system to send out email?

    Thank you.
     
  3. Marcelo Lemos

    Marcelo Lemos Registered

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    I´m blocked by gmail and could find several emails from unknown senders being sent from my server to one email address.
    Check the logs on the image below. How can it be done? How to avoid this?
    There are much more than this. This is just a sample
    riosocieties.com.br/mj/gmail_problem.jpg
     
    #3 Marcelo Lemos, Aug 5, 2015
    Last edited by a moderator: Aug 5, 2015
  4. cPanelMichael

    cPanelMichael Forums Analyst
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