How do I configure the client part of the Exchange Mobile access?

in outlook 2003 I set up a signature that is added to each of my emails. If
I send an email through exchange on my ppc - does the sig still get added ?
David

I download Microsoft Global Contact Access for my PPC for access Exchange
2003
When I find a user with Global Contact Access, it always return "Unable to
connect to email server".

I'm trying to get OMA working on exchange 2003, and i'm running into
problems. I've looked through the newsgroup but not found anything
directly relevent to my problem, so i'm posting a new topic.. sorry if
it's a rehash!

We installed a Sonicwall vpn.  Works perfectly for one user (me).  I can get
on from home, ping local machines by name and private address, map drives by
server name at work, etc,run outlook, etc.
Another user (my boss!), can run the vpn, he can ping by private address, so

I use 3 computers daily - one at home, work, and tablet - if cache modes
makes an offline version is it possible to have 3 cached modes using
exchange and it work? or am I asking for problems ?
David

I am deliberating buying a hosted exchange account to work as my work email
account that I can access anywhere.
I am especially interested in pocketpc access through activesync.
I am trying to work out what advantage exchange gives over pop3 as it is

I am trying to configure IMAP4 for one of my users to use his PDA while out
of office to pick up email.
My exchange server is sat behind a firewall and as a result is not public
facing.

I have Exchange 2003 and Windows 2003 Certificate Server. I had a Pocket PC
2002 Phone and used the Add Root Certificate Tool to install my certificate
so I could use Active Sync and OMA. I upgraded to a Windows 2003 Pocket PC
Phone and don't know how to install my certificate. ...

Spent two long hours this morning battling with OMA and Exchange ActiveSync.
Fixed HTTP (403) problems in the event log on the server by reinstalling
ASP.NET and setting permissions correctly on /OMA.
Fixed HTTP_400 on the phone by getting rid of the (correct) saved password

I am not a specialist of Pocket PC ... but I wanted to synchronize my Global
Address List on my PDA, and so get all the info about my collegues.
It seems that the components installed on PCC do not provide this function.
Am I write or wrong ?

I am now in the dead end on setting up OMA.
My system( testing site but identical to the production) :
- Exchange2003 SP1 on Windows2003 Srv SP1
- Single Exchange topology (no FE or BE)

We've been using Exchange 2003 server and mobile ActiveSync to
synchronize Windows 2003 smartphones. Everything worked fine until I
installed RMS on same box as the Exchange Server. Now, instead of
syncing, I keep getting a HTTP_500 error. All other Exchange functions