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  • 1.  New IP block with bad reputation

    Posted Apr 20, 2017 09:23 AM

    Hi,

    We have been recently granted with a new /24 IP block from our provider which seems already blacklisted by your services.

    Our company provide third party SaaS antispam service to our customers and we are having issues while deliverying email to some mail servers using your blacklist. Customers using the new range see their mails rejected by thoses mails servers with the follwing message :

    554 5.7.1 You are not allowed to connect. Your SMTP gateway is in the Symantec Global Bad Sender list. Please check your IP at www.symantec.com/security_response/landing/spam  and  http://ipremoval.sms.symantec.com/lookup/

    The current block range is 154.59.34.0/24. Our others long date /24 blocks are them not subject to the blacklist. The previous owner of the IP block may have been an ISP or a spam source but this is not the case anymore.

    We already tried to ask for removal manually from http://ipremoval.sms.symantec.com/lookup/ but it doesn't seems to be taken in consideration.

    Could you please remove this block from your bad reputation list ? We can provide legitimate example if needed.

    Best regards,
    Antony SPERA.

     



  • 2.  RE: New IP block with bad reputation

    Posted Apr 20, 2017 02:52 PM

    Hi Antony,

    The error you are reporting is issued by a Symantec Mail Gateway product, for which this forum is not for. You may wish to post there to obtain assistance if you have not already done so.

    https://www.symantec.com/connect/security/forums/messaging-gateway

    With that being said, this errors means the recipient is using a blocklist of IPs provided by Symantec. You can request an investigation with our threat analysts and have them provide feedback to reach a resolution. For more infomation on how to do this, please review the article below.

    https://support.symantec.com/en_US/article.TECH82881.html

    Regards,
        
    Ben Beaulieu
    Sr Technical Support Engineer



  • 3.  RE: New IP block with bad reputation

    Posted Apr 21, 2017 11:37 AM

    Hi Ben,

    Thanks for your answer.

    We sent an email to the investigation review address with all the details and sample.

    Best regards,

    Antony SPERA.