This blocklist is no longer operational. DNS queries return NXDOMAIN. Remove from MTA configurations to avoid query timeouts.
What it is
JIPPG was an early 2000s independent blocklist operated by Leadmon.net. It was one of many small community-operated DNSBLs from the era before Spamhaus and SpamCop dominated the space. Long discontinued.
How it affects SMTP delivery
No impact. Remove from configurations.
What causes a listing
N/A, defunct.
How to get removed
No removal necessary.
For the full reference catalog, see the email blocklist directory.
Delisting process in detail
The JIPPG blocklist targets observed spam sources. Delisting is handled through the operator’s contact form. Response times vary based on operator availability, typically 24-72 hours for well-documented requests. Automatic decay applies when the observed spam pattern stops. JIPPG is a specialty blocklist with limited global deployment.
Prevention practices
JIPPG prevention follows standard anti-abuse fundamentals: authenticated sending (SPF, DKIM, DMARC), list hygiene, complaint monitoring. Because JIPPG is a smaller specialty blocklist, its impact is limited to specific receiver populations. Monitor JIPPG alongside major public blocklists for comprehensive coverage. Confirmed opt-in and disciplined list hygiene remain the primary defenses.
Common listing causes
JIPPG listings correlate with observed spam patterns. Common causes include purchased lists that hit JIPPG honeypots, compromised shared-hosting accounts, and coordinated spam campaigns. Because JIPPG operates a smaller network than major blocklists, listings typically reflect specific abuse patterns.
Related blocklists
JIPPG operates alongside other specialty blocklists. Enterprise reputation monitoring combines these smaller lists with major public blocklists (Spamhaus, Barracuda, SpamCop) for comprehensive coverage. Because smaller blocklists can react faster than consensus lists to emerging patterns, they occasionally provide early-warning signals.
About the Author
Alaa · LinkedIn
Email infrastructure specialist with 8+ years of hands-on experience in SMTP, deliverability, and email verification. I’ve configured and troubleshot mail systems across Postfix, Exchange, and cloud relays, managed IP reputation and warmup campaigns, and built verification pipelines processing millions of addresses. My work spans DNS authentication (SPF, DKIM, DMARC, BIMI), bounce handling, blocklist monitoring, and compliance frameworks including CAN-SPAM and GDPR. I write every article on SMTPedia to give email professionals, developers, and marketers the accurate, RFC-grounded reference they need.
About SMTPedia
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