LashBack UBL: Email Blocklist Removal Guide
Unsubscribe Blocklist: lists IPs that send mail to addresses that have previously unsubscribed. Targets non-compliance with unsubscribe requests rather than spam content.
Email deliverability
NoSolicitado: Email Blocklist Removal Guide
Latin American blocklist targeting spam affecting Spanish-language email users. Primarily deployed in Spanish and Portuguese-speaking regions.
SWINOG Blacklist: Email Blocklist Removal Guide
Swiss network operators group blocklist. Maintenance has become inconsistent. Primarily historical relevance to Swiss email infrastructure.
TRIUMF Blacklist: Email Blocklist Removal Guide
Internal blocklist operated by the TRIUMF particle physics laboratory in Vancouver. No longer actively maintained or publicly deployed.
TRUNCATE: Email Blocklist Removal Guide
The highest-severity tier of GBUdb's IP reputation system. Lists IPs with so poor a reputation that no legitimate mail has been observed from them. Used by SpamStopsHere and enterprise mail…
Woody’s SMTP Blacklist: Email Blocklist Removal Guide
Small independent Swiss SMTP blacklist. Discontinued. DNS queries no longer return valid responses. Historical reference only.
FABELSOURCES: Email Blocklist Removal Guide
Dutch DNSBL that was part of the FabelSources anti-spam project. Discontinued. No longer operational.
KEMPTBL: Email Blocklist Removal Guide
A DNSBL zone associated with Kemp Technologies and Spamhaus network infrastructure. No longer actively maintained. DNS responses are unreliable.
0SPAM Blacklist: Email Blocklist Removal Guide
Independent DNSBL with both RBL (IP-based) and standard spam lists. Populated from trap networks and community reports. Used in some SpamAssassin configurations.
Anonmails DNSBL Removal: How to Delist Your IP from spam.dnsbl.anonmails.de
German DNSBL focused on anonymous mail relay abuse and spam sources. Used in German mail infrastructure.
