Web security firm Sophos has enhanced its two e-mail appliances to prevent the outgoing leakage of confidential information.
In addition to blocking e-mail-borne malware, potentially unwanted applications and spam from entering the corporate network via the e-mail gateway, the appliances now enable businesses to scan outbound messages for sensitive data.
They also use encryption to ensure the secure transit of business critical e-mails.
New management controls included in the Sophos ES1000 and ES4000 e-mail appliances allow IT administrators to set and monitor user- and group-specific policies that prevent e-mails containing pre-defined keywords or strings of words from reaching unauthorised recipients, both within and outside of the organisation.
The appliances can also identify and block confidential attachments, including those that have had their file type disguised by the sender.
These features, together with encryption, help organisations comply with the raft of legal and regulatory requirements that govern the security of confidential information, said Sophos.