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black.rbl.ctipd.astaro.local blocking emails for one user but not another

I have someone emailing to my company from a @bellsouth.net address (which is actually yahoo email servers) and it is getting: Rejected: RBL (black.rbl.ctipd.astaro.local). Another person is able to receive email from this same email address with no problems.

Here are the errors I see in the SMTP Log:

Delivery from 98.139.44.112 rejected. Check at Check IP Reputation | Commtouch - Internet Security Solutions. Reference code: tid=0001.0A090301.4DA1F949.0153

Delivery from 98.139.44.129 rejected. Check at Check IP Reputation | Commtouch - Internet Security Solutions. Reference code: tid=0001.0A090304.4DA39AA2.0003

Yet when I check the IP addresses at commtouch, I get the result of:

IP Query Result:
 IP Address: 98.139.44.112
 Risk Level: No Risk
 Description: This IP address has not been used for sending Spam

IP Query Result:
 IP Address: 98.139.44.129
 Risk Level: No Risk
 Description: This IP address has not been used for sending Spam


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Parents
  • Being a yahoo mail server, I am sure it does send out a lot of spam. I just thought it was odd that it would block to one user and then not the other. I whitelisted the email address and I haven't seen it block it since so hopefully it won't pose a problem.
Reply
  • Being a yahoo mail server, I am sure it does send out a lot of spam. I just thought it was odd that it would block to one user and then not the other. I whitelisted the email address and I haven't seen it block it since so hopefully it won't pose a problem.
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