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CLOUDMARK INC
US8 patents
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US7373385B2May 13, 2008
Method and apparatus to block spam based on spam reports from a community of users
CLOUDMARK INC97 citations97
US7519565B2Apr 14, 2009
Methods and apparatuses for classifying electronic documents
CLOUDMARK INC49 citations94
US9729413B2Aug 8, 2017
Apparatus and method for identifying domain name system tunneling, exfiltration and infiltration
CLOUDMARK INC8 citations79
US9560074B2Jan 31, 2017
Systems and methods of identifying suspicious hostnames
CLOUDMARK INC9 citations76
US9294490B1Mar 22, 2016
Apparatus and method for identifying a domain name system resource exhaustion attack
CLOUDMARK INC7 citations76
US7890441B2Feb 15, 2011
Methods and apparatuses for classifying electronic documents
CLOUDMARK INC6 citations66
US7539729B1May 26, 2009
Method and apparatus to enable mass message publications to reach a client equipped with a filter
CLOUDMARK INC2 citations62
US9634970B2Apr 25, 2017
Apparatus and method for augmenting a message to facilitate spam identification
CLOUDMARK INC0 citations48