How-To: Check If Your Mail Server Is On A Blacklist | LiewCF.com

How-To: Check If Your Mail Server Is On A Blacklist | LiewCF.com

How-To: Check If Your Mail Server Is On A Blacklist

Posted: 17 Apr 2010 07:28 PM PDT

check email server blacklist

If you have noticed that the emails you sent couldn’t reach the email receivers or bounced back, you might want to check if your mail server has been listed as spam server or not.

It is easy to check and takes only 1 minute.

Check against anti-spam database

Visit this page on WhatIsMyIPAddress.com and enter your mail server IP address (not yourdomain.com) and click the “Blacklist Check” button.

Then, your mail server IP will be checked in nearly 100 DNS based anti-spam database (DNSBL) listed on the page.

Green ball means not listed, your mail server is clear in the particular DNSBL. Red ball means listed, and probably blocked by other servers if they apply the DNSBL.

HELP! My email server is blacklisted!

If your mail server is blacklisted, then you might want to contact your mail server admin (your ISP or hosting provider) to resolve it and request a removal.

For mail server admin, you should control the flow of spam of your server. Liquidweb has a few tips to fight spam on cPanel servers.

Related book: Anti-Spam Measures: Analysis and Design