try to enable "allow fragmented packets" in your rules. this may help.
\ / ASCII RIBBON CAMPAIGN
X AGAINST HTML MAIL
<lorenzo at fsonline dot com dot br>:
> Hello all,
> I'm new to m0n0wall and the list. Im running 1.1 on a pc. Are there problems
> with mono and hotmail? I tried to login in Hotmail but nothing happens. All
> the other sites works well.