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05.16.2008 at 12:55PM PDT, ID: 23409600 | Points: 500

	[x] Attachment Details

Outlook 2007 over VPN not working

Zones: Email Clients, Exchange Email Server, Virtual Private Networking (VPN)

Tags: Microsoft, Outlook 2007, SP1

I have been using Outlook 2007 over an IPSEC vpn for some time now but recently it just wont connect.

I am not aware of any changes but obviously something has.

When trying to create a new profile it says that the Exchange server could not be found.

I can verify ping, ping by FQDN, TS session to all relevant servers (Exchange, DC, GC etc). Net use works to all as well.

Have set the registry entry DefConnectOpts to 0, re-registered the SPNs for the GC against the domain.

I can see traffic going going through the firewall to exchange (havent checked coming back because of the way its configured).

It just wont connect in any way - Outlook.exe /rpcdiag just shows connecting...

Any help / ideas would be greatly appreciated.

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Question Stats

Zone: Software

Question Asked By: smivvy2

Question Asked On: 05.16.2008

Participating Experts: 3

Points: 500

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05.16.2008 at 01:20PM PDT, ID: 21586118

Rank: Sage

kristinaw:

try the icmp tests listed here
http://support.microsoft.com/kb/314825

kris.

05.16.2008 at 01:31PM PDT, ID: 21586210

kevo04:

Something that I've done with Outlook 2007 on one of my remote users is Exchange over HTTP. My remote user can recieve their Exchange mail anywhere, as long as have internet connection. Works great. Look at the attached file and let me know.

kevo

Using-Outlook-via-the-Internet.doc (33 KB) (File Type Details)

Outlook via HTTP

05.16.2008 at 02:12PM PDT, ID: 21586488

smivvy2:

Thanks for the post Kris, Kevo.

I have tried the MTU test already as well (sorry, should have mentioned that). I have also set the firewall to ICMP back to exchange with 'Fragment' if the packets are too big.

No difference.

I have also tried it with Outlook 2003 and surprisingly I get the same issue...

Not too keen on RPC/HTTP - unsure why! Will try that as an absolute last resort. It'd be a bit of a defeat ;o)

05.16.2008 at 02:15PM PDT, ID: 21586519

smivvy2:

It wont defeat me! I will fix it!

05.18.2008 at 06:03PM PDT, ID: 21594706

brian_chamberlain:

Can you owa?

05.19.2008 at 01:02AM PDT, ID: 21595861

smivvy2:

Yes, OWA works fine.

I have been concentrating on M$ issues but I think it may be more the firewall / routers. I'm going to start some packet sniffing today and see exactly what gets dropped / what communicates with what.

20080236-EE-VQP-29 / EE_QW_2_20070628