Postfix 1.1.11 and earlier allows remote attackers to use Postfix to
conduct "bounce scans" or DDos attacks of other hosts via an email
address to the local host containing the target IP address and service
name followed by a "!" string, which causes Postfix to attempt to use
SMTP to communicate with the target on the associated port.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning
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