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UniSent COM Add-in for Microsoft Outlook

Updated: 19-October-2015
There are another utilities for shared mailbox: RightFrom

Suppose that Microsoft® Outlook® user John Doe has access to his personal mailbox and to the additional mailboxes (usually "Info" <>, "Sales" <> etc.) on Exchange server. When he replies to or forwards from these mailboxes the message goes into his primary mailbox Sent items folder.
This utility ensures that the message sent with the second mailbox's From address stay in the mailbox that it originated from (i.e. the sent message goes to Sent Items folder of the mailbox the item was sent from).
Also you can easily see who was the original author of the message.
Review these articles:    
Allowing Users to Access Multiple Mailboxes or Creating a Group Mailbox
How to Add Another Person's Mailbox to Your Outlook Profile
How to grant Send On Behalf Of permission
Assigning "Send As" Permissions to a user
How to Grant a User Send As Rights in Exchange Server 5.5 and Exchange 2000
Now UniSent2010 is compatible with Outlook 2016
Current versions:    UniSent2007 ver    UniSent2010 ver

How it works

UniSent utility scans sender address of each sent message in the main mailbox Sent items folder and in case it matches the additional mailbox name moves the message to the appropriate Sent items folder.


 #  To Do 
  Outlook 2003   Outlook 2007   Outlook 2010/2013/2016  
 1.  Download archive file   Download archive file  
 2.  Unpack   Unpack  
 3.  Exit Outlook in case it is running.  
 4.  Install Microsoft CDO library. CDO is listed as Collaboration Data Objects in the list of Outlook optional components in the Office installation. See the details here.    Skip this step.  
 5.  Execute UniSent2007_per_user.msi   If your Outlook is 32-bit, run
otherwise execute
 6.  After completing the installation start Outlook.  
 7.  Click Tools -> Options -> Other -> Advanced options...-> COM Add-Ins.   Click Tools -> Trust Center -> Add-ins. Select "COM add-ins" in the Manage: listbox (in the bottom of the page) and click Go button.   Click File -> Options -> Add-ins.
Select "COM add-ins" in the Manage: listbox (at the bottom of the page) and click Go button.
UniSent2007 installation picture (Outlook 2003)   UniSent2007 installation picture (Outlook 2007)   UniSent2010 installation picture (Outlook 2010)  
 8.  You will see checked "UniSent COM Add-in" in the list there.   You will see checked "UniSent2010" in the list there.  

UniSent software is distributed as a set of .msi packages and thus can be deployed to computers or users in the organization using Windows Group Policy Software Installation.


Let's suppose that the primary mailbox name is "John Doe" and the additional mailbox name is "testuser1".

 #  To Do   Screenshots  
       Outlook 2003     Outlook 2007     Outlook 2010   
 1. Run Outlook and click the New button to create a new message. Enable the "From:" field.   UniSent2007 testing picture 1 (Outlook 2003)   UniSent2007 testing picture 1 (Outlook 2007)   UniSent2010 testing picture 1 (Outlook 2010)  
 2. Fill in the "From:" field with "testuser1". Fill in the "To:" field with "John Doe". Fill in the rest fields and send the message.   UniSent2007 testing picture 2 (Outlook 2003)   UniSent2007 testing picture 2 (Outlook 2007)   UniSent2010 testing picture 2 (Outlook 2010)  
 3. Navigate to Testuser1 > Sent Items. Make sure that the message you have just sent out is placed there.   UniSent2007 testing picture 3 (Outlook 2003)   UniSent2007 testing picture 3 (Outlook 2007)   UniSent2010 testing picture 3 (Outlook 2010)  
 4.  (Outlook 2003) Open View menu. Select Arrange By > Current View > Customize Current View... Click Fields... button.
(Outlook 2007) Open View menu. Select Current View > Customize Current View... Click Fields... button.
(Outlook 2010) Open View menu. Select View Settings. Click Columns... button.
Select All document fields from the list on bottom left corner of the form. Select Author field in the Available fields: (Availbale columns: in Outlook 2010) list and press Add button. Click OK button to close Show Fields(Show Columns) window. Click OK button to close View Summary(View Settings) window.
Author column will be populated with "John Doe", as John Doe is the original author of this message.
  UniSent2007 testing picture 4 (Outlook 2003)   UniSent2007 testing picture 4 (Outlook 2007)   UniSent2010 testing picture 4 (Outlook 2010)  

We have tested UniSent with Outlook 2003/2007/2010/2013/2016 on Microsoft Windows XP/Windows Vista®/Windows 7/Windows 8. UniSent 2010 can work with Office 365.


To allow UniSent to work properly, "Cached exchange mode" should be enabled.


You can uninstall UniSent using Add/Remove programs in the Control Panel.

About these demo versions

UniSent2007 demo version works only for additional mailboxes whose names include "TEST".

UniSent2010 demo version shows a pop-up dialog when starts and every time the sent message is moved to the proper Sent items folder.

The full versions have no limitations.

Older releases

Older versions of UniSent you can find at


Q. He have installed UniSent 2007 trial on one of our workstations with Windows Vista Ultimate and Office Outlook 2007. The plug-in does not start and Outlook's COM Add-in dialog shows a certificate error message.
A. In the Outlook Trust Center, what are your Macro Security settings? Try lowering them and restarting.

Q. I am testing the UniSent Add-in but I cannot get it to work. I have tried almost anything but anyway when I sent a mail from my ITTEST account to my personal account it is placed in my personal sentbox and not in the ITTEST sentbox.
A. Check if you have granted "Full mailbox access" right on ITTEST mailbox to yourself as described here.

Q. Does UniSent works only on messages that are replied to or forwarded, or will it also works with messages that I originate from scratch, using the account which is not the default?
A. UniSent also works with messages that you originate from scratch.

Q. It seems that UniSent is incompatible with Symantec Enterprise Vault add-in. Could you help?
A. Acccording this thread on the Symantec support forum, the problem can be solved by using Symantec EV add-in version 10.0.1316 or later.

Q. I am about to purchase this product but I wondering regarding updates/patches. What are the policies regarding updates? Do you provide them freely or as a purchase?
A. As a registered user, you will get free updates for one year from the date of purchase.
Once the new version is ready, this information will be e-mailed to all registered users. We will send updates via e-mail to those who request them.

Q.  I have already ordered your software and want to view data relating to my order.
A.  Just visit our
Customer Care Center.


Licensing policy: the product is licensed on a per-computer (sometimes called per-workstation) basis.
If you are running Outlook on Windows Terminal Services or Citrix, you should purchase 10 licenses for each Citrix/TS server or a Site license.

Number of licensesIndividual price Your payments will be securely processed by Share-it 
1-4EUR 35 Shopping Cart
5-9EUR 30
From 10EUR 28
Site licenseEUR 1050 Shopping Cart
Site license (Educational)EUR 840 Shopping Cart
Enterprise licenseEUR 4500 Shopping Cart
All transactions are securely processed by our external registration providers. Customer Care Center
   Shopping CartShopping CartShopping Cart

Site license covers a single organization in one location (building complex). If you purchase a site license, you may use the program in an unlimited number of your company's computers within this area.
Enterprise license covers all computers of single organization world-wide. If your company has many branches even with thousands of machines, Enterprise license covers them all.
If you are running Outlook on Windows Terminal Services or Citrix, you should purchase 10 licenses for each Citrix/TS server or a Site license.

If you are interested in shared mailbox deleted items handling, look at this Microsoft KnowledgeBase article:
Items deleted from a shared mailbox go to the wrong folder in Outlook.

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