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Sending host is in a blacklist

Discussion in 'General Discussion' started by ihmedia, Jan 17, 2005.

  1. ihmedia

    ihmedia Registered

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    HI

    A client of ours is trying to send email through our smtp server.

    They get an alert box saying the sendign host 81.152.225.29 is in a black list?

    Can someone explain why they are getting this error?
     
  2. chirpy

    chirpy Well-Known Member

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    Search the mail logs in (Linux) /var/log/messages. They may shed some light onto which list is blocking the senders IP address. Alternatively, check on one of the RBL aggregation sites for their sending IP address, such as:
    http://www.dnsbl.info/
     
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  3. ihmedia

    ihmedia Registered

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    its listed at dnsbl.njabl.org

    Someone said its because they send through a dynamic ip?

    What can i do, should i leave the setup and just tell them to use there isp's smtp server?
     
  4. chirpy

    chirpy Well-Known Member

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    Yup, that's usually the best idea.
     
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