Remote host said: 554 5.7.1 DNS Blacklisted

Discussion in 'Mail Server Support' started by popowich, Feb 10, 2012.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:

    Did you get the error 554 5.7.1 DNS Blacklisted?

    - Do an RBL check of your IP address at MX Toolbox
    - If you are not listed there, contact the destination and ask for more information including asking if you are on their in-house blacklist
    - Verify that your server is not and has not recently be used for spamming / backscatter, if so fix the problem before you try and delist your IP address

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