Exchange Server Online 2013 Email Reports & Unattended Emails from reciever

Question

Hello All,
I am very new in exchange server, i there any way to get these following requirements 
emails reports - to include info like no. of emails received by a particular user, unattended emails, response time to an email etc?
  to check & implement if we can call back an unattended email from receiver's end. For eg. if an email is lying unattended in receiver's inbox for 7 days, same is automatically reverted & the sender is notified along with a copy of that email?
  to check & implement if there is any system under which a user cannnot delete any email either incoming or outgoing?
Expecting your valuable suggestion to fulfill above points, thanks in advance
Mahendra

Answer 1

Hello,
Hopefully I can answer some of your questions below:
1.  Email reports, here's a good script that can tell how many emails a user has sent/received in a particular time frame, take a look at this:  http://www.msexchange.org/kbase/ExchangeServerTips/ExchangeServer2010/Powershell/NumberofE-mailsSentandReceivedbyoneUser.html
As far as unattended (I'm assuming you mean unread) emails and response time to emails, there is no automated function that can tell you that.  You would have to search message tracking logs to see when one email is received by a user, and then see
if/when they replied to it.
2.  To have any type of automation on unread emails and a notification back to the sender, I doubt that's possible.  Also, that could potentially generate a ton of unnecessary email traffic on your network (for example, I get TONS of alert/notification
emails daily, and don't always read them, having Exchange try to track all of that, and notify the sender of unread messages after 7 days would be a lot to put on exchange).  I would look into read and delivery receipts that users can use to track this
type of thing.
3.  If you want to put a user's mailbox in a state that they cannot delete anything, either implement Journaling for your entire Exchange Org (http://technet.microsoft.com/en-us/library/aa998649(v=exchg.150).aspx) or if you're interested in doing this
type of thing per mailbox, I would use the:
Set-Mailbox -Identity <userID> -litigationholdenabled $true
http://blogs.technet.com/b/exchange/archive/2013/12/11/litigation-hold-and-in-place-hold-in-exchange-2013-and-exchange-online.aspx
Hope this helps!
Statik