BATV

Clearswift Gateway can use Bounce Address Tag Validation (BATVBounce Address Tag Validation) to eliminate email bounce attacks (back-scatter) where the spammer forges the email address to be that of a legitimate sender causing the legitimate email address to receive any bounce messages for that spam.

Using BATV, the Gateway can determine whether the original message originated in the company mail domain. For more details, see  http://mipassoc.org/batv/draft-levine-batv-03.html.

For more information, see Configuring BATV.