In Exchange 2013 CU5

I created Retention Tag & Policy to purge items in default "deleted items" folder after 1 day

But when I checked in one of the user mailbox "DeletedItemsfolder" mails are still there but with mail tip message

"This item will expire in 0 days. To keep the item longer, apply a different retention policy"

Step 1 : Create a Retention Tag

New-RetentionPolicyTag "RPT-AllUsers-DeletedItems" -Type DeletedItems -Comment "Deleted Items are purged after 1 day" -RetentionEnabled $true -AgeLimitForRetention 1 -RetentionAction PermanentlyDelete

Step 2: Create a Retention Policy and link the retention tag

New-RetentionPolicy "RP-MRM-AllUsers" -RetentionPolicyTagLinks "RPT-AllUsers-DeletedItems "

Step 3: Apply the Retention Policy to all Users

Hi,

The retention age for items in the Deleted Items folder is calculated based on the date of delivery unless the item was moved or deleted from a folder that doesn't have an inherited or implicit retention tag.

For more information, please refer to this blog.

Retention tags on Deleted items folder

http://blogs.technet.com/b/vikass_blog/archive/2013/12/14/retention-tags-on-deleted-items-folder.aspx

Best Regards.