usernameA from mailbox store bluesky-srv1 can't send email
to usernameB at mailbox store bluesky-srv2, but usernameA
from mailbox store bluesky-srv1 can received email from
usernameB at mailbox store bluesky-srv2.
PS: Both username A and B in the same domain.
Your message did not reach some or all of the intended
Sent: 5/30/2003 10:00 AM
The following recipient(s) could not be reached:
Username B on 5/30/2003 10:00 AM
The e-mail system was unable to deliver the
message, but did not report a specific reason. Check the
address and try again. If it still fails, contact your