I recently got this after emailing a mate:
This Message was undeliverable due to the following reason:
Your message was not delivered because the destination computer was
not reachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
tion parameters.
Most likely there is a network problem that prevented delivery, but
it is also possible that the computer is turned off, or does not
have a mail system running right now.
Your message was not delivered within 4 days.
Host hotmail.com is not responding.
Hotmail down for more than 4 days?
By the time I got the above email we had already chatted on MSN
