WMware ESX, Snapshots and VMware Tools Installation

Want to know a quick way to break a VM?

http://communities.vmware.com/message/472953

First, setup a VM. Then, begin an installation of the VMware Tools. Before finishing, create a snapshot of the VM.

Boom-presto! Your VM is turned off and marked "invalid"!

I might post a follow up if I confirm a solution to be had.

SMTP Error 550, 5.1.1 for New Contractor

Yesterday, I had a situation where a user was getting an NDR bounce-back after sending mail to a Distribution List in Exchange. Specifically, one person was listed in the error message: a contractor who had started last week.

To make a long story short, I had created a User object for this contractor so that they could get access to network resources but because he was a contractor, I did not create an Exchange mailbox for him. Instead, I created a Contact object pointing to his personal email address... with this Contact object having the same First and Last name as the User object.

When I added him to the corresponding Distribution List, I of course managed to add the email-deprived User object instead of the Contact object. Hey, the First Name and Last Name matched!

Needless to say, the error that popped up was:

#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##

After removing the User object from the Distribution List and then adding the Contact object, all was well.