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Spam and Open Relay Blocking System (SORBS) MISC blacklist

Overview

The Spam and Open Relay Blocking System (SORBS) MISC blacklist identifies miscellaneous servers with open proxies that are not included on the SORBS SOCKS or SORBS HTTP blacklists.

  • Listings occur at the IP level.
  • The impact on deliverability is low.

Reasons for getting listed

This blacklist includes servers with open proxies that are not included on the SORBS SOCKS or SORBS HTTP blacklists. However, it is uncommon for IP addresses to appear on this list because this blacklist is very specific.

How to get off this blacklist

This blacklist 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

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