Amateur Radio on the International Space Station (ARISS) International Chairman Frank Bauer, KA3HDO, has requested that amateurs refrain from sending e-mail to the ISS crew via the onboard RS0ISS Personal Message System (PMS).....The ARRL Letter (Vol. 22, No. 01 January 3, 2003) from The American Radio Relay League reports that: Amateur Radio on the International Space Station (ARISS) International Chairman Frank Bauer, KA3HDO, has requested that amateurs refrain from sending e-mail to the ISS crew via the onboard RS0ISS Personal Message System (PMS).
"The crew is not answering the e-mail, and we really don't expect them to." he said. "If things change, we'll let you know."
Reports have indicated that the ISS packet mailbox is filling up with unread messages, many of them greetings to the crew or holiday greetings.

The all-ham Expedition 6 ISS crew consists of Crew Commander Ken Bowersox, KD5JBP, cosmonaut Nikolai Budarin, RV3FB, and astronaut Don Pettit, KD5MDT