Backup host

[Vortek, Eater Of Souls!]

Hello all,
I have a quick question.
I'm going to be moving soon, and therefore, my linux box will be down
for a couple days.
I was wondering if anyone could act as an smtp caching server for me,
and possibly just put up a small webpage saying that my domain is
temporarily offline, and will be back up soon?
If you can't host the web page, it's fine, but I'd prefer that my users
know I haven't dropped off the earth.
Please email me privately if you are willing to help.
Thanks in advance.