A service of Internet America
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Use this page to check an IP address to determine if the Internet America mail servers are blocking mail being delivered from that IP address. The Airscreen.net RBL is checked as well as RBLs maintained by other organizations.
Note that in addition to a RBL block, there are numerous other reasons why a given piece of mail may have been rejected by the Internet America servers. Unless the headers on the rejected mail state that a RBL was the reason, there will be some other cause.
Notice: To prevent abuse, you can only make a limited number of queries per hour. If the page quits working for you, wait an hour or so before making any additional queries. Internet America reserves the right to limit access to this information at any time without notice.