Overview
Schulte was a small, personally operated RBL project. Personal and small-scale blacklists like Schulte represent a long tradition in the anti-spam community, where individual mail administrators publish their own block lists based on abuse they directly observe.
While never achieving wide adoption, such lists sometimes found use in niche filtering configurations as supplementary signals. The Schulte RBL has been discontinued.
How It Works
As a personal RBL, Schulte was based on spam and abuse data observed directly by the operator. This typically includes IPs sending spam to the operator's own mail infrastructure, hitting personal spam traps, or appearing in targeted abuse reports.
How to Get Delisted
Schulte RBL is no longer active. No removal is necessary or possible. Personal RBLs of this scale have negligible deliverability impact β if listings affected you historically, they are no longer relevant.