Exchange mobile device issue:

Hi Ppl,

I'm having an issue with Exchange server and remote logins from mobile
devices, well its a persistant issue ive never been able to resolve.

We are running SBS 2003 and largely everything works except emails under
certain circumstances:

1) Mobile email from devices such as windows mobile based devices,
IPhone's and Blackberries does not work
2) Email from systems and clients that are not Microsoft does not work
(Mac, Linux etc)
3) Mail retrieval and forwarding services such as that offered by
Blackberry does not work

The process reaches the authentication point and repeatedly asked for a
usename and password. I know the process is at least reaching the SBS server
as in the event logs under security the failure items are all related to the
users I have tried to login from remote devices. Using known good usernames
and passwords login never completes and the security log states unknown
username or bad password.

I am totally stumped on this one, ive read the docs and as far as I can see
it should be working!

Everything works using Outlook(30/07 RPC/http) from either XP or Vista
however all other platforms (Mac/Linux) and clients fail to connect even
though they are using "Exchange server type connections".

I have successfully configured Evolution on fedora to talk to Exchange from
the local lan using the same settings by Outlook RPC/HTTP but remotely and
without VPN the authentication issue kicks in.

I have all the stipulated ports open:

21
25
443
444
3389
4125
1723
80

Also GRE protcol 47

Any help would be very much appreciated as I havent a clue where to go from
here!

Thanks :-)


.

Relevant Pages

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