Allowing more than 1 user to manage the group membership of a Exchange 2007 Distribution List

http://technet.microsoft.com/en-us/library/cc164350.aspx

As with most simple things in Exchange 2007 this needs to be done using powershell. It's fairly simple once you know the commands though, see below for the Microsoft example.

Use the Exchange Management Shell to delegate management of distribution group membership to a user

Run the following command:

Add-ADPermission -Identity -User -AccessRights WriteProperty -Properties "Member"
For example, to grant John Smith the right to add members to the Marketing Department distribution group, run the following command:

Add-ADPermission -Identity "Marketing Department" -User "John Smith" -AccessRights WriteProperty -Properties

Encrypting and compressing backups

Just found this. Common sense really but handy to know.

http://seer.entsupport.symantec.com/docs/285648.htm

"When using encryption it is not recommended to use hardware compression. If the data must be compressed it is recommended to use software compression. When using software compression the data is compressed first then encrypted. When using hardware compression the data is encrypted first then compressed. Encrypted data does not compress well because the data is randomized. In some cases using hardware compression with encryption will cause the data to become bigger rather than smaller."

Basically we created a new encrypted backup job, but left it to Hardware compression only. Needless to say the job was not compressed and so did not fit on to the tape. Have now changed the job to use software compression.