In Exchange 2010, you can use Retention Policies to manage message retention. Retention Policies consist of delete tags, i.e. retention tags with either Delete and Allow Recovery or Permanently Delet...
Updated Dec 13, 2023
Version 3.0
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@Peter K.: Is that what you want?
Create a Retention Tag
http://technet.microsoft.com/en-us/library/ff625223.aspx
Use the Shell to create a default policy tag for voice mail messages
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This example creates a default policy tag for voice mail messages. When the tag is applied to a mailbox, voice mail messages without an inherited or explicitly applied retention tag are deleted after 14 days.
New-RetentionPolicyTag "Corp-Exec -Voice Mail" -Type All -MessageClass voicemail -Comment "Voice mail messages without a retention tag are deleted after 14 days." -RetentionEnabled $true -AgeLimitForRetention 14 -RetentionAction DeleteAndAllowRecovery
Note:
By default, the MessageClass parameter defaults to *, which applies to all message types. A mailbox can have a maximum of three default tags: a DPT with the Move to Archive action, a DPT with the Delete and Allow Recovery or Permanently Delete actions to delete messages from the primary and archive mailboxes, and a DPT for voice mail messages. You can only specify the MessageClass parameter for voice mail DPTs.
For detailed syntax and parameter information, see New-RetentionPolicyTag.