The Spam and Open Relay Blocking System (SORBS) MISC blocklist identifies miscellaneous servers with open proxies that are not included on the SORBS SOCKS or SORBS HTTP blocklists.
- Listings occur at the IP level.
- The impact on deliverability is low.
Reasons for getting listed
This blocklist includes servers with open proxies that are not included on the SORBS SOCKS or SORBS HTTP blocklists. However, it is uncommon for IP addresses to appear on this list because this blocklist is very specific.
How to get off this blocklist
This blocklist accepts manual requests to remove IP addresses. First you need to register for an account with SORBS. Then you can look up IP addresses and netblocks in the SORBS database and open support tickets.
If you are eligible, you can manage your own networks and listings, and even remove your own IP addresses.
Tips for staying off this list
Make sure your servers are not configured for open relays and open proxies