is a free service to check if your IP address is blacklisted, a common cause of email delivery issues. Only a small number of blacklists affect your email delivery. With, you can find out if you're on any of the blacklists most relevant to Ireland.

What is an IP address?

An IP address (Internet Protocol address) is a unique address that computers and other devices use in order to identify and communicate with each other on a computer network. An IP address simply identifies a specific computer on a network. More FAQs...

About IE Internet

IE is a leading Irish technology company that provides managed email and application hosting services for business. is a service we have developed with the needs of our customers in mind.

Q. How do I know if my IP is Blacklisted?


A. The first clue that you may have been blacklisted usually is that you will receive "bounce-back" emails from the destination domain to which you are attempting to deliver mail. Many of these bounce-backs will inform you of the technical reason that you are being blocked but some will not, depending on the administrator's preferences and type of software.

In order to check if you have been blacklisted, all you need to do is find your IP address and enter it into our IP check on our Home Page.


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