The product, SenderID, works by flagging emails with different levels of authenticity to warn users of the potential dangers associated with them.
SenderID protects against identity theft and address spoofing - both employed by spammers and virus writers to get past filters, a spokesman for MailKey said.
The firm is also developing SenderID Registry; an open directory database for email administrators to register their domains.
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iTnews Executive Retreat - Security Leaders Edition
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