the worldwide leader in email and Web security appliances, today announced a new feature in the Barracuda Spam Firewall that can differentiate legitimate Non-Delivery Report (NDR) messages - also known as bounce messages - from invalid NDR messages resulting from spoofing attacks.
As such, distinguishing legitimate from invalid bounce messages can be extremely important to users who send business-critical email.
Version 4 also includes improvements in handling of false bounce messages
(backscatter), improved content and attachment filtering, and further reductions of false positives.
This capability sends faked bounce messages
to the spamming computer, tricking it into noting that the email address is inactive or unrecognized and thus increases the probability that the user will be deleted from the spam list.
New routing capabilities that enable options such as forwarding messages to administrator, customized bounce messages
, action notifications to sender, and blocking incoming mail per policy
allow, send a copy, redirect, delete or bounce messages
0 requires no programming and retrieves e-mail bounce messages
from the e-mail account(s) of the user's choice.
0, the next-generation e-mail bounce recognition engine that fully automates the process of handling e-mail bounce messages
Bounced email and defunct addresses accumulate, and bounce messages
may be misinterpreted, leading list owners to discard good addresses.