bl.ofdoom.com

bl.ofdoom.com is an automated real time blocking list generated from attempts to email nonexistent accounts, on a few domains.

It follows these rules:

• Each attempt to email a nonexistent address adds one point to the /24 net block containing the offending IP address.
• When the score for a net block is greater than 15, that /24 block gets added to the block list.
• When the score for a net block has not increased for 8 hours, one point is taken away every hour.
• When the score drops below 15, the /24 block is removed from the block list.

The block list can be queried via dns from rbl.ofdoom.com, in the usual manner for an ip based blocklist.

Currently there are 105 blocks on the list.

185.0.0.0/8 matches the net block 185.93.89.0/24

It appears to be announced by AS213790 (LimitedNetwork-AS - Limited Network LTD, GB)

The last activity was around 2026-04-15 15:00:00-07

It is currently blocked, with a score of 28343. It will be unblocked in about 1181 days.

185.0.0.0/8 matches the net block 185.147.124.0/24

It appears to be announced by AS213861 (Vostrik-AS - Vostrikov Rodion, RU)

The last activity was around 2025-01-17 21:00:00-08

It is currently blocked, with a score of 118287. It will be unblocked in about 4929 days.

185.0.0.0/8 matches the net block 185.156.73.0/24

It appears to be announced by AS211736 (FDN3 - FOP Dmytro Nedilskyi, UA)

The last activity was around 2026-06-08 15:00:00-07

It is currently blocked, with a score of 43678. It will be unblocked in about 1820 days.

185.0.0.0/8 matches the net block 185.224.128.0/24

It appears to be announced by AS49870 (AS49870-BV - Alsycon B.V., NL)

The last activity was around 2024-08-13 20:00:00-07

It is currently blocked, with a score of 79638. It will be unblocked in about 3319 days.

To check if an address is blocked, enter it here: