rfc-clueless.org - RFC-Clueless DNS Real-time List

Description: DNS look-up list of domains with misconfigured eMail servers.

email (30599) e-mail (9554) spam (458) uce (20) blackhole (15) electronic mail (14) rfc-clueless (1) rfc-ignorant (1) dns rbl (1)

Example domain paragraphs

RFC 2 is not a list of spammers.

With RFC Ignorant closed down, we've expanded to include their lists. You can check to see if a hostname is contained in our lists by attempting to resolve one of the following patterns (generally you need only check whether the host resolves or not rather than worry about the exact IP).

The following list is deprecated, and will be removed by the end of the year 2020.