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I cannot send emails bc Spectrum's IP address in Provo Utah is on a RBL. Help?

lrobstone621lrobstone621 Posts: 1 Newcomer
edited February 14 in Email Jan 09, 2023

As of this morning I cannot send emails from my personal addresses because my ISP's IP address is on two major blacklists. How can I fix this?


  • James_MJames_M Posts: 3,942 ADMIN
    Jan 09, 2023

    Hi & welcome!

    According to, the IP address is not a Spectrum IP address.

    Let us know if have additional questions.


  • CitgoHughesCitgoHughes Posts: 1 Newcomer
    Jan 09, 2023

    I am having a similar issue sending an email from an Att account to account I am with the understanding my IP at work is on your blacklist ip I have tried to contact SORBS to get it removed with no avail. I believe it is being blocked by Spectrum when I send from ATT to Spectrum. I am sure that it is a Spectrum problem. Please Help!!!!! I have just changed IP at work and can no longer send from my personal RR account. I have to go the the websight to send anything which is a pain. Would rather use my email software Thunderbird. I have checked online and no it is not Thunderbird it occurs with other email software also including microsoft.

    Sending of the message failed.

    An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: cmsmtp blocked. Please see for more information. AUP#Out-1130.

  • James_MJames_M Posts: 3,942 ADMIN
    Jan 09, 2023



    AUP#1130 is a error that occurs when sending violates the Acceptable Use Policy. Typically it means that the email is blocked. If you are able to send emails through Spectrum Webmail, then the issue lies with the email client you are using.

This discussion has been closed.