<div>
Command for deletion look correct.<br />
<br />
You said &quot;message was still in the recipient's mailbox&quot; referring to <b>Administrator</b> or <b>qc@</b>?
</div>


<div>
@Shreedhar Ette: I mean both of them
</div>


Network Administrator

DP230

<div>
No, it got the same error, I changed to today but did not help?
</div>


<div>
After changed the date's format to 12/12/2018..12/13/2018, it worked! Many thanks.
</div>


<div>
<div class="content wysiwyg-content">
Dear Experts, I could not delete the message in Exchange 2016 like before. <br />
<br />
Here is the screenshot, yellow square is the user mailbox, blue square is the distribution mailbox. So what are the differences between DROP and SEND in Agent tab?<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2018/12_w50/1406804/e1.JPG" target="_blank" title="e1.JPG (128 KB)"><img alt="e1.JPG" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2018/12_w50/800_1406804/e1.JPG" /></a><br />
The second screenshot was the result after issued command to delete, it said success but the message was still in the recipient's mailbox<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2018/12_w50/1406805/e2.JPG" target="_blank" title="e2.JPG (76 KB)"><img alt="e2.JPG" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2018/12_w50/800_1406805/e2.JPG" /></a><br />
Can you please suggest? Many thanks!
</div>
</div>


e1.JPG

e2.JPG

Dear Experts, I could not delete the message in Exchange 2016 like before. 

Here is the screenshot, yellow square is the user mailbox, blue square is the distribution mailbox. So what are the differences between DROP and SEND in Agent tab?



The second screenshot was the result after issued command to delete, it said success but the message was still in the recipient's mailbox



Can you please suggest? Many thanks!

Problem with search-mailbox in Exchange 2016

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.

Windows Server 2012

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.