This excerpt taken from the HPQ DEF 14A filed Feb 11, 2005.
Communications with the Board
Individuals may communicate with the Board by submitting an e-mail to HP's Board at email@example.com or by sending a letter to:
All directors have access to this correspondence. Communications that are intended specifically for non-management directors should be sent to the e-mail address or street address noted above, to the attention of the Chair of the Nominating and Governance Committee. In accordance with instructions from the Board, the Secretary to the Board reviews all correspondence, organizes the communications for review by the Board, and posts communications to the full Board or individual directors as appropriate. HP's independent directors have requested that certain items that are unrelated to the Board's duties, such as spam, junk mail, mass mailings, solicitations, resumes and job inquiries, not be posted.