Most network administrators are aware of how to check to see if your mail server is on a blacklist whether it be a RBL or DNSBL or any of its variations. The problem with most of them is that most of them check by IP Address. What about your domain reputation.

There are a number of sites that you can use to check your domain reputation to see if your email is or should be flowing properly. Following is a list that I use to check a domain for its reputation in regards to sending email effectively.

Before you whitelist a domain in Spam and Virus filter you should always check to determine the reputation of a domain. Additionally, you probably should not whitelist a domain that gives out free email accounts such as ,, etc. If you need to white list a sender from one of those domains you should whitelist only the user e.g. [email protected] , [email protected] , otherwise you may be opening up the floodgates of spam coming to your server.

Clustered Networks

Domain Reputation Listing

Why Clustered Networks

Located in Edmonton, AB Canada, Clustered Networks was Incorporated in 2001 and has offered Network / Internet and IT Consulting services for over 15 years. We offer personalized service!