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  1. #1
    Untanglit
    Join Date
    Sep 2010
    Posts
    28

    Default UT 14 and Cloudflare 1.1.1.1 dns service issues with Spam Blocker

    I've started running the cloudflare DNS 1.1.1.1 and 1.0.0.1 and I get errors on the admin panel that "Spam blocker is installed but a DNS server (Wan_1, 1.1.1.1) fails to resolve DNSBL queries"

    The odd thing is the error is not there 100% of the time. Sometimes it goes days with out appearing.

  2. #2
    Untangler jcoffin's Avatar
    Join Date
    Aug 2008
    Location
    Sunnyvale, CA
    Posts
    9,107

    Default

    Any open to the public DNS will saturate the Internet DNSBL services so the DNS will be blocked from DNSBL services or be request limited. I would use an ISP DNS if they support DNSBL or get a private DNS service.
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  3. #3
    Untangle Junkie dmorris's Avatar
    Join Date
    Nov 2006
    Location
    San Carlos, CA
    Posts
    17,747

    Default

    Or just remove spam blocker if you don't have any onsite SMTP server.
    f1assistance likes this.
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    If you need Untangle support please call or email support@untangle.com

  4. #4
    Untanglit
    Join Date
    Sep 2010
    Posts
    28

    Default

    Thanks for the info.

    There is a small mail server behind it but after reviewing the reports I've disabled it. There was maybe 1 block a month.

  5. #5
    Untangle Ninja sky-knight's Avatar
    Join Date
    Apr 2008
    Location
    Phoenix, AZ
    Posts
    25,093

    Default

    You can also use the DNS server features of Untangle to redirect the offending lists to another DNS server. When I used Untangle in front of a mail server I had a VPS that I used for this purpose. It was too slow for general use, but it fueled the DNS lists quite nicely.
    Rob Sandling, BS:SWE, MCP
    NexgenAppliances.com
    Phone: 866-794-8879 x201
    Email: support@nexgenappliances.com

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