About
Invaluement supplies DNS-based blocklists for email and spam filtering systems. Its ivmURI list covers domains and addresses found in message links, while ivmSIP and ivmSIP/24 cover sending IP addresses and ranges.
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Customers can access the data through DNS queries or synchronisation. The business began in 1996 as PowerView Systems and launched the blocklists in 2007. Its website publishes a mailing address in Hickory, North Carolina, in the United States.
