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IP Blacklist Check

Check if your IP is listed on spam blacklists

Frequently Asked Questions

What is an IP blacklist?
An IP blacklist (DNSBL) lists IP addresses known for sending spam. Email servers check these lists to filter mail.
How do I get removed from a blacklist?
Fix the cause (malware, open relay), then visit each blacklist's website to request delisting.
How to prevent getting blacklisted?
Use SPF, DKIM, DMARC, maintain clean mailing lists, and monitor your IP reputation regularly.
How long does it take to get removed from an IP blacklist?
Removal time varies by blacklist. Some auto-remove after 24-48 hours if the issue is resolved. Others require manual delisting requests that can take 1-7 days to process.
Can a shared hosting IP address get blacklisted because of another user?
Yes. On shared hosting, if another user on the same server sends spam, the shared IP can be blacklisted, affecting all users. This is a key reason to consider a dedicated IP for email.

What are IP Blacklists?

IP blacklists (also known as DNSBLs or RBLs) are databases of IP addresses that have been reported for sending spam, malware, or engaging in malicious activity.

Email servers and firewalls use these lists to block unwanted traffic and protect users from potential threats.

Why Check Your IP?

Email Deliverability: If your IP is blacklisted, your emails may be rejected or marked as spam.

Website Access: Some services may block access from blacklisted IPs.

Reputation: A listed IP can indicate security issues on your network that need attention.

Shared Hosting: If you're on shared hosting, someone else's actions could affect your IP reputation.

What To Do If Listed?

1. Identify the cause: Check for malware, compromised accounts, or misconfigured servers.

2. Fix the issue: Remove malware, change passwords, update software.

3. Request delisting: Most blacklists have a delisting process on their websites.

4. Monitor: Regularly check your IP to ensure it stays clean.