DataPlane SMTP greeting
172.104.209.251 is listed on the DataPlane SMTP greeting blacklist.
Description: DataPlane.org is a community-powered Internet data, feeds,<br>and measurement resource for operators, by operators. IPs that are<br>identified as SMTP clients issuing unsolicited HELO or EHLO commands.
Type of feed:
primary (
feed detail page)
Last checked at:
2025-04-28 14:10:05.761000
Was present on blacklist at:
2025-04-16 22:10,
2025-04-17 02:10,
2025-04-17 06:10,
2025-04-17 10:10,
2025-04-17 14:10,
2025-04-17 18:10,
2025-04-17 22:10,
2025-04-18 02:10,
2025-04-18 06:10,
2025-04-18 10:10,
2025-04-18 14:10,
2025-04-18 18:10,
2025-04-18 22:10,
2025-04-19 02:10,
2025-04-19 06:10,
2025-04-19 10:10,
2025-04-19 14:10,
2025-04-19 18:10,
2025-04-19 22:10,
2025-04-20 02:10,
2025-04-20 06:10,
2025-04-20 10:10,
2025-04-20 14:10,
2025-04-20 18:10,
2025-04-20 22:10,
2025-04-21 02:10,
2025-04-21 06:10,
2025-04-21 10:10,
2025-04-21 14:10,
2025-04-21 18:10,
2025-04-21 22:10,
2025-04-22 02:10,
2025-04-22 06:10,
2025-04-22 10:10,
2025-04-22 14:10,
2025-04-22 18:10,
2025-04-22 22:10,
2025-04-23 02:10,
2025-04-23 06:10,
2025-04-23 10:10,
2025-04-24 22:10,
2025-04-25 02:10,
2025-04-25 06:10,
2025-04-25 10:10,
2025-04-25 14:10,
2025-04-25 18:10,
2025-04-25 22:10,
2025-04-26 02:10,
2025-04-26 06:10,
2025-04-26 10:10,
2025-04-26 14:10,
2025-04-26 18:10,
2025-04-26 22:10,
2025-04-27 02:10,
2025-04-27 06:10,
2025-04-27 10:10,
2025-04-27 14:10,
2025-04-27 18:10,
2025-04-27 22:10,
2025-04-28 02:10,
2025-04-28 06:10,
2025-04-28 10:10,
2025-04-28 14:10
Spamhaus SBL CSS
172.104.209.251 was recently listed on the Spamhaus SBL CSS blacklist, but currently it is not.
Description: The Spamhaus CSS is part of the SBL. CSS listings will have return code 127.0.0.3 to differentiate from regular SBL listings, which have return code 127.0.0.2.
Type of feed:
secondary (DNSBL) (
feed detail page)
Last checked at:
2025-04-23 22:13:10.321000
Was present on blacklist at:
2025-04-16 22:13
Spamhaus XBL CBL
172.104.209.251 was recently listed on the Spamhaus XBL CBL blacklist, but currently it is not.
Description: The Spamhaus Exploits Block List (XBL) is a realtime database of IP addresses of hijacked PCs infected by illegal 3rd party exploits, including open proxies, worms/viruses with built-in spam engines, and other types of trojan-horse exploits.
Type of feed:
secondary (DNSBL) (
feed detail page)
Last checked at:
2025-04-23 22:13:10.321000
Was present on blacklist at:
2025-04-16 22:13
