For instance, to boost morale and welfare, theater commanders may approve communications by military members and other Department of Defense employees deployed for extended periods away from home on official business. Brief communications made by DOD employees while traveling on government business to notify family members of official transportation or schedule changes. Personal e-mail, McGovern said, should not interfere with performance of official duties. It should be brief and made during an employee's personal time whenever possible. He stressed that all e-mail communications should be polite, respectful and professional.
Profanity is never appropriate.
This includes following traditional military protocols and courtesies. He listed examples such as pornography, chain letters, unofficial advertising, soliciting or selling and other uses incompatible with public service. An example of improper use of e-mail includes sending or forwarding disparaging or derogatory comments attacking someone's character or integrity. These types of e-mail messages conflict with the Air Force's high ethical standards. Federal civilian employees and military personnel must also abide by other e-mail edicts.