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deliverability
March 2026

How to remove my IP from an email blacklist?

Identify which blacklist you are on, fix the underlying cause (spam, open relay, compromised server), then submit a delisting request through the blacklist provider.

Detailed Answer

Getting delisted from email blacklists requires fixing the root cause first, then requesting removal.

Step 1: Identify which blacklists Scan your domain at https://intodns.ai or use the blacklist checker at https://intodns.ai/blacklist-check to see which lists flag your IP.

Step 2: Fix the root cause Common causes and fixes:

  • Sending spam: Stop immediately, clean your mailing list
  • Compromised server: Patch vulnerabilities, change passwords, scan for malware
  • Open relay: Configure SMTP server to require authentication
  • Spam traps: Remove inactive addresses, implement double opt-in
  • High bounce rate: Clean your email list, verify addresses before sending

Step 3: Request delisting

| Blacklist | Delisting process | Auto-expire | |-----------|-------------------|-------------| | Spamhaus SBL | Manual request at check.spamhaus.org | No | | Spamhaus PBL | Self-removal at spamhaus.org/pbl | Immediate | | Barracuda | Request at barracudacentral.org | No | | SpamCop | Automatic after 24-48 hours | Yes | | SORBS | Request at sorbs.net | No | | UCEPROTECT L1 | Automatic after 7 days | Yes |

Step 4: Prevent re-listing

  • Implement SPF, DKIM, and DMARC authentication
  • Keep spam complaint rate below 0.1%
  • Use confirmed opt-in for new subscribers
  • Monitor blacklist status regularly with IntoDNS.ai
  • Set up alerts for new blacklist appearances

Important: Fix the cause BEFORE requesting delisting. If you delist without fixing the problem, you'll be re-listed quickly and delisting becomes harder.

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