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Showing posts from June, 2011

SuppressStateChanges value for Exch2010 Prep

I ran MS Exchange Pre-Deployment Analyzer (ExPDA) on my Windows 7, and got this warning message below.

Googled and found the the solution below,

1. Open Registry Editor.
2. Locate HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\RESvc\Parameters.
3. Right-click Parameters and select New | DWORD value. Name the new DWORD value SuppressStateChanges.
4. Double-click SuppressStateChanges.
5. In the Value data field, enter 1.
6. Close Registry Editor and then restart the Simple Mail Transfer Protocol (SMTP) service, the Microsoft Exchange Routing Engine service, and the Microsoft Exchange MTA Stacks services for the change to take effect. (Thanks for this good article.)

Configure MX record on and

Once I got my Exchange 2010 set up in my lab, the next exciting thing would be sending/receiving emails testing from the external domains. The outgoing email was pretty straight forward to set up once the 'send connector' was configured and it worked right away.

I was not sure about the incoming emails and MX records setup at the first place because the domain name of my lab is an internal domain name only. I decided to use two of my personal domains to be the accepted domains in Exchange and messed around the MX record/DNS settings.

My first personal domain is hosted by GoDaddy and the other one is hosted by

The MX record setup with GoDaddy was a breeze. Here are the steps I've taken:

Log in GoDaddy account
Click "My Account" on navigation bar.
Click "Domains/Domain Manager" on the left
Click the proper domain name
Click 'Launch' under DNS Manager.
Create a new A (Host) record, 'mail' and pointed it to my Exchange server. Leave…

Upgrade Firmware on Dell PowerConnect 6248 Switch

The PWR light turns RED on my 'brand new' Dell PowerConnect 6248 switch as soon as plugged into the 'brand new' Dell RPS-600 power supply. However, PC6248 itself powers on ok without error without connected to RPS-600.

Called Dell support and they saying it's a known issue will exchange my RPS-600. They also asked me to upgrade the firmware to the latest one and I document it here.

(If it's a new switch, make sure to assign the management login:
DellSW1 (config)# username admin password 3C2cpk2H level 15)

I first downloaded the tftp program from here and latest firmware, both provided by Dell engineer.
Unzipped the firmware to the folder "PC62xx_3213" to my desktop
The tftp installer failed to install so I downloaded the zip file and run the executable file from my desktop directly. The IP of my Win7 desktop is

I 'putty' into the PC6248 switch ( and issued the copy command as below,

And I could see the progress in th…

530 5.7.1 Client was not authenticated - Exchange 2010

I finally got the MX record to publish for one of my two test external domains. Then I tried to send a test email, but got rejected with the error, "530 5.7.1 Client was not authenticated". Fortunately, it didn't take long to find the fix.

Go to Exchange Management Console
Go to Server configuration, hub transport server and default receive connector's properties
Click on last tab “permission Groups” and tick a check mark into “Anonymous users” click apply and ok.

Thanks for this article,