1. DNS/abuse/spamhaus

菊池文村(あやむら)さんのことを思い浮かべる。

spam/撃退術

spam/と対策についての非常識

https://www.spamhaus.org/

https://www.spamhaus.org/lookup/ Blocklist Removal Center

Spamhaus IP blocklists: SBL, XBL and PBL.

Domain Lookup Tool.

• This lookup tool checks to see if the Domain you enter is currently listed in the live Spamhaus Domain Blocklist (DBL).

This Lookup tool is only for Domains (not IP Addresses). The DBL only lists domains currently involved in abuse, therefore it is unlikely that normal domains will be on the DBL.