@g.jacobse said:
@NetworkNerd
Exchange 2003
Give this a try:
The registry modification steps listed below should be the same regardless of whether the computer is running XP, Vista, or 7. The registry modification MUST be done while logged in as the user who needs to use Outlook Anywhere.
*Outlook 2003
No registry modification is needed.
Outlook 2007
Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then click the following subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\12.0\Outlook\RPC.
If the RPC key does not exist, you will need to create a new key within the Outlook folder.
On the Edit menu, point to New, and then click DWORD Value.
Type DefConnectOpts, and then press ENTER.
Right-click DefConnectOpts, and then click Modify.
In the Value data box, type 0, and then click OK.
Exit Registry Editor.
Outlook 2010
Click Start, click Run, type regedit in the Open box, and then click OK.
Locate and then click the following subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\RPC.
If the RPC key does not exist, you will need to create a new key within the Outlook folder.
On the Edit menu, point to New, and then click DWORD Value.
Type DefConnectOpts, and then press ENTER.
Right-click DefConnectOpts, and then click Modify.
In the Value data box, type 0, and then click OK.
Exit Registry Editor.
For a New Mail Profile...
The following steps must be performed with Outlook closed.
In Control Panel, click Mail.
Click Show Profiles.
Add a new profile, and name it whatever you want.
Once the Add New E-mail Account Wizard launches, choose the option to manually configure server settings or additional server types.
Next, choose Microsoft Exchange as the E-mail Service. This may show up differently in different versions of Outlook, but select the option that mentions Microsoft Exchange.
Enter
mail.yourdomain.com (or whatever the public-facing DNS record for your mail server is) as the Microsoft Exchange server, and make sure the box labeled "Use Cached Exchange Mode" is checked.
The User Name should be the full name of the user you are setting up.
Click the More Settings button.
Click the Connection tab.
On the Connection tab, check the checkbox for Outlook Anywhere.
Then, click the Exchange Proxy Settings button.
Enter the public address of your mail server (DNS A-record or ip of your mail server) as the server name.
Enter msstd:publicdnsoriphere as the proxy server address.
Make sure the option for fast networks is not checked but the option for slow networks is checked. This will allow computers at our main site to connect to the Exchange server as they normally would but use Outlook Anywhere when off site.
Change the authentication type to Basic Authentication.
Click Ok and then Ok again to return to the Microsoft Exchange Settings screen.
Click the Next button followed by Finish. If prompted for credentials, enter them in the form domain\username, and then enter your Windows password.
For an existing Mail Profile...
The following steps must be performed with Outlook closed.
In Control Panel, click Mail.
Click Show Profiles.
Choose the profile you want to edit and click Properties.
Click the E-mail Accounts button.
Select the e-mail account in question, and click Change.
This should open the Microsoft Exchange Settings menu.
Click the More Settings button.
Click the Connection tab.
On the Connection tab, check the checkbox for Outlook Anywhere.
Then, click the Exchange Proxy Settings button.
Enter the public address of your mail server (DNS A-record or ip of your mail server) as the server name.
Enter msstd:publicdnsoriphere as the proxy server address.
Make sure the option for fast networks is not checked but the option for slow networks is checked. This will allow computers at our main site to connect to the Exchange server as they normally would but use Outlook Anywhere when off site.
Change the authentication type to Basic Authentication.
Click Ok and then Ok again to return to the Microsoft Exchange Settings screen.
Click the Next button followed by Finish. If prompted for credentials, enter them in the form domain\username, and then enter your Windows password.
Now, if all of this still does not work, try opening a VPN connection from the site where the machine is to the site where the mail server is, opening Outlook, logging in, letting the mailbox pull down from the server for the first time, and closing the VPN and logging back into Outlook. It should work after that.
