Spammers sometimes encode URLs to conceal the hostname or IP addresses from a content filter. Select this option to identify messages with deceptive URLs.
When IMail checks for deceptive URLs, the domain component of the URL is decoded first, then it is checked against the URL Domain Blacklist. If the domain component of the URL is found in the URL Domain Blacklist, the e-mail is treated as spam. The following are examples of deceptive URLs:
Plain text examples:
http ://7763631671/domainname.htm
http://0xCeBF9e37/domainname.htm
http://0316.0277.0236.067/domainname.htm
http://3468664375@3468664375/o%62s%63ur%65%2e%68t%6d