Liu
Liu Mei wrote the following at 05:55 07.10.2002:
>Doesn't work. :-(
>
>--- [EMAIL PROTECTED] wrote:
> > trying using just the top level domain, IE yahoo.com
> > and
> > hotmail.com
> >
> > I haven't tried that, but its worth a shot.
> >
> > On Sun, 6 Oct 2002 17:04:35 -0700 (PDT)
> > Liu Mei <[EMAIL PROTECTED]> wrote:
> > > Hi,
> > >
> > > If I only want to allow user to check their email
> > on
> > > yahoo or hotmail, how should I setup the firewall?
> > >
OK they seem to be using a web based mail tool which makes the firewall set
up tricky. You want to make all mail hosts available to your web browser
either using port 80 or 443. And then think about port 25 and possibly 587.
The list here may not be complete but it's worth a try
Name: www.hotmail.com
Addresses: 64.4.52.7, 64.4.53.7, 64.4.43.7, 64.4.44.7
64.4.45.7
Name: hotmail.com
Addresses: 64.4.53.7, 64.4.44.7
Name: mail.hotmail.com
Addresses: 64.4.50.7, 64.4.50.71, 64.4.49.7, 64.4.55.71
64.4.55.135, 64.4.49.71, 64.4.49.135, 64.4.49.199
Name: yahoo.com
Addresses: 64.58.79.230, 66.218.71.198
Name: login.yahoo.akadns.net
Addresses: 64.58.76.99, 64.58.76.98
Aliases: mail.yahoo.com, login.yahoo.com
Name: www.yahoo.akadns.net
Addresses: 66.218.71.80, 66.218.71.84, 66.218.71.87, 66.218.71.81
66.218.71.89, 66.218.71.86, 66.218.71.83
Aliases: www.yahoo.com
This of course is only a snapshot of the possible addresses, you may want
to build something more more dynamic or then recheck in short intervals.
And of course http access to mail does not look a lot different than to any
old web page.
HTH
THINK
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