A requirement to create retention policy for deleted items was raised ,I followed the below steps, but still the policy is not working for all exchange users.

The environment is :Two MS WinServer 2012,with exchange 2013 installation in 2 different sites

I created a new Deleted item retention tag ,and added it to a newly created retention policy for testing .

And run the below commands :

Get-Mailbox -ResultSize unlimited | Set-Mailbox -RetentionPolicy " MYTestRetention "

It didnt work so I run the below against my test user:

Set-Mailbox "UserABC" -RetentionPolicy "MYtestretention"

run Start-ManagedFolderAssistant -Identity UserABC

And then checked the user settings on ECP , I found the retention policy set correctly but it wasnt working  or deleting any items.

So I checked in mailbox usage ,and changed the deleted items retention period for 1 day.as below.

Only then it worked

The question is :

How can I apply this deleted items retention policy to all users in the domain without having to change it manually mailbox feature tab fr

Modify your retention tag to delete over no of days and then apply the policy

https://technet.microsoft.com/en-us/library/dd297955(v=exchg.150).aspx#RT 

this is already was done with the creation of the tag and policy

can you put the output of get-retentiontag tag name  | fl 

Vishwanath  ...Is this useful ??

I asked details about get-retentiontag not policy, do provide output of the same

here you are ..

I need get-retentiontag deleteditemstag | fl 

thanks for following up with me,i just cant run (get-retentiontag ),it says there is no such command ,so i thought u might meant the (Get-RetentionPolicyTag)

 here you are the error i recive when i run the (get-retentiontag )

[PS] C:\Windows\system32>get-retentiontag DeletedItemsTag | fl
get-retentiontag : The term 'get-retentiontag' is not recognized as the name of a cmdlet, function, script file, or
operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try
again.
At line:1 char:1
+ get-retentiontag DeletedItemsTag | fl
+ ~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (get-retentiontag:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException