Emails with IP-like strings in the Received Headers are Triggering the Symantec Global Bad Senders Verdict
Last Updated April 18, 2012
Messages are received by Symantec Messaging Gateway containing Hostnames with IP-like strings in the section of the Received header. Example: Received: from sample.headerfield.com (xxx.xxx.xxx.xxx-hostname.some-external-domain.com [yyy.yyy.yyy.yyy]) by somehost.some-internal-domain.com (<version>) with ESMTP id <message id> for <email@example.com>; <date>
Affected messages are triggering a "Symantec Global Bad Sender" verdict
Adding the affected IP addresses in the "Local Good Sender IP" is not allowing their traffic to go through
SMG is unexpectedly applying Bad Sender Verdicts when remote hostnames contain valid IP addresses.
This issue has been resolved with the release of SMG 9.5.4.
Please upgrade to the latest version to resolve this issue.
Hostnames with IP-like strings that trigger Global Bad Sender verdicts cannot be bypassed through Good Senders configuration.
Local Good Sender IPs list does not work for a message that contains a Received header with more than 1 IP addresses
Imported Document ID: TECH162696
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