Blank Live Communication Server (LCS) 2005 MMC Snap-In

Description

You have successfully install your Live Communication Server (LCS) 2005 or LCS 2005 with SP1. However when you start the Live Communication Server Administration tool you got blank page only.
There's nothing appear at the left hand side of the mmc window. The account that you are using already have the correct permission.

Resolution

Create a new MMC snap-in to manage the Live Communication Server 2005.

> Click Start, click Run, type mmc, and then click OK.
> In the Console1 MMC snap-in, click Add/Remove Snap-in on the File menu.
> In the Add/remove Snap-in dialog box, click Add, click Live Communications Server 2005 in the Add Standalone Snap-in dialog box, click Add, click Close, and then click OK.
> On the File menu, click Save As.
> In the Save As dialog box, locate the %WINDIR%\System32 folder.
> In the File name box, type wrtcsnap2.msc, and then click Save.
> Click Yes when you are prompted to overwrite the existing wrtcsnap2.msc file.

For details, please see http://support.microsoft.com/kb/926921

Email being block by att.net

Description:

Users are having issue when sending email to certain domain. From the undeliverable message, you could see, " is blocked. For information see http://att.net/blocks'>". You've check with known blacklist provider and none of them have your IP listed.

Resolution:

To remove your IP from their list is through their website http://att.net/blocks. Choose Tools for administrators of mail systems whose messages have been blocked. Fill in your IP address, name, contact number, and the error message that you received. After that click submit. It would take a couple of days for them to remove your IP.