SpamRats RATS-NoPtr

noptr.spamrats.comIP blocklistSpamRats ↗
Removal
Fix rDNS + self-service
Cost
Free
Time to clear
Fast once PTR exists

About SpamRats RATS-NoPtr

RATS-NoPtr is the simplest SpamRats listing: the IP has no PTR record. Many receivers reject mail from IPs with no reverse DNS, so this is worth fixing regardless.

Why an IP gets listed

  • The sending IP has no reverse DNS (PTR) record.

How to delist from SpamRats RATS-NoPtr

  1. 1Create a PTR record for the IP — this is set by whoever controls the IP (your host/ISP), not in your normal DNS zone.
  2. 2Verify with a reverse-DNS lookup that the PTR now resolves.
  3. 3Delist via the SpamRats lookup page.
Open SpamRats RATS-NoPtr lookup / removal page ↗
Before you request removal: fix the root cause first — delisting while the problem persists almost always leads to a fast re-listing. Confirm the IP has valid reverse DNS, and that your SPF, DKIM and DMARC are in order.

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