A lot of people are using our SBL and XBL lists to guard their mail infrastructure against the incoming floods of spam. While we encourage all SBL-XBL users to switch to ZEN to check the connecting IP, the SBL-XBL combination still has a very powerful, but lesser-known application area: use…

*** This is a Security Bloggers Network syndicated blog from The Spamhaus Project authored by The Spamhaus Team. Read the original post at: https://www.spamhaus.org/resource-hub/email-security/using-the-sbl-and-xbl-against-spamvertized-urls