You are expecting a very important file from a co-worker in a remote office to be sent to you
through e-mail. You finally call the co-worker and tell him that you have not received the file.
He informs you that he sent the file yesterday, but will send it again immediately. After some
time, you still have not received his e-mail message. You contact the Technical Support
department and ask them for help. After some investigation, Technical Support finds the
e-mail from your coworker with an attachment named salesnumbers.exe in the spam folder
of your e-mail client. What is the most likely reason that the e-mail message was filtered
out?

A.
The file name of the attached file exceeds the file name length of the filter policy.

B.
Messages from remote offices are blocked on internal e-mail.

C.
The attachment’s file size exceeds the size limits of the e-mail filter policy.

D.
File attachments with an .exe extension may contain malicious code.