Email FAQs What expectation of privacy does a user of the DC Government email system have? What are the current content filtering activities in the District (email and Internet)? What should an end user do if a threatening email is received from an external source? What should end users do if they receive a pornographic attachment via email from an external source? Can OCTO block certain email addresses (incoming vs. outgoing)? What can end users do about pop-up messages and spamming (including pornographic pictures)? Does one email list exist of all IT administrators to ensure they receive OCTO broadcasts and alerts? How should threatening emails be handled? You say we should send email using security and encryption. Do zip files and passwords constitute encryption?