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Question :-

A Cisco Email Security Appliance uses which message filter to drop all executable attachments entering and leaving the Cisco Email Security Appliance?
drop-exE. if (attachment-filename == "\\.exe$") OR (attachment-filetype == "exe") { drop(); }
drop-exE. if (recv-listener == "InboundMail" ) AND ( (attachment-filename == "\\.exe$") OR (attachment-filetype == "exe")) { drop(); }
drop-exe! if (attachment-filename == "\\.exe$") OR (attachment-filetype == "exe") { drop(); }
drop-exe! if (recv-listener == "InboundMail" ) AND ( (attachment-filename == "\\.exe$") OR (attachment-filetype == "exe")) { drop(); }

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