lugh.ch

as nerdy as needed.

DNSBL


Purpose of the DNS-based blackhole list (DNSBL)

This list mainly exists as an additional SPAM-prevention layer for the mail solution used here. Still, maximum effort is put into keeping it as useful as possible for public usage too.

Listing policy and return values

One of the following points will get an IP address listed:

  • Sending SPAM to specific mail addresses
  • Suspicious login attempts
  • Abuse of SPF

When listed, the example IP 1.2.3.4 will return an A record with "127.0.0.2" and a TXT record like this:

$ dig +short ANY 4.3.2.1.rbl.lugh.ch
127.0.0.2
"1.2.3.4 is listed because of misbehaviour. See http://lugh.ch/dnsbl.html for details"

Lookup

View the whole list and query it manually.

Delisting

Not available. All bans expire after 7 days.

Use the DNSBL in your mail setup

Add rbl.lugh.ch to your existing RBL setup to query the blacklist.

Trouble? Get in contact

In the unlikely case that your IP was blocked innocently, please contact us.