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ChooseFrom 365 for Office 365

  Customer Care Center 
Updated: 13-September-2017
See also:   
ChooseFrom for Microsoft Exchange 2013/2016
ChooseFrom for Microsoft Exchange 2007/2010
SendAsGroup for Microsoft Exchange 2007/2010

Office 365 mailbox may have multiple SMTP addresses. For outgoing messages Exchange online service always uses the primary SMTP address. For example, John Doe has a mailbox with primary SMTP address and secondary smtp address. John Doe can easily receive the message addressed both to and, but he can not send the message as because Exchange online rewrites the From address to default one.
ChooseFrom 365 application allows Office 365 users to send a message with any of their own SMTP addresses as the From address.
The application is a cloud service.

We are announcing a new feature: multiple display names associated with a single SMTP address.

If you have only one email address you might be interested in ability to send mails using different sender names.
Examples: John Doe <> BestFruits Co <> John Wayne <> info <> or LuxuryCars Co <> or Джон Уэйн <> helpdesk <> FreshMeat Ltd <> 约翰 <>

This functionality will be available before November 1st 2017.

ChooseFrom 365 mail flow schema

Current version:


  1. Set up a connector.

    In Office 365, click Admin, then click Exchange to go to the Exchange Admin Center. Next, click mail flow, and click connectors.
    Click the plus sign icon to add a new connector. Create the connector named "ToChooseFrom365" with the following parameters:

    ChooseFrom 365 - connector parameters

  2. Let us know your default and alias addresses.

    Send a message to containing the following information: |SMTP:default_address___| |smtp:alias_address __|

    We'll send you back an e-mail confirming that you can test the service during 2 weeks.


  1. Open Outlook 365 and create a new mail message. Assuming that your alias address is "" place the follwing to the Subject line:

      Subject: This is a test
     You can add any display name:
     Subject: This is a test sendas: John Doe <>

  2. Send the message to any external Internet address you can operate.

  3. Receive the message you have just sent and make sure the sender address (the From: field) is the same you have set in the Subject line in step #1. Also check that the Subject line contains only "This is a test" phrase.


Q.  How to provide a list of addresses/aliases?
A.  Use the following format: ... ... ... ......................... ........................ ............................

Q.  I have cancelled my subscription. How do I reroute my emails away from ChooseFrom365 server?
A.  In Office 365, click Admin, then click Exchange to go to the Exchange Admin Center. Next, click mail flow, and click connectors. Delete the connector named "ToChooseFrom365".

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 annual subscription basis. In other words, one license allows you to use one alias during one year.

Number of licensesIndividual price Your payments will be securely processed by Share-it Your payments will be securely processed by Avangate  
1-10USD 25 Shopping Cart
Shopping Cart
11-50USD 23
From 51USD 21
All transactions are securely processed by our external registration providers. Customer Care CenterCustomer Support 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.

Feel free to send us your comments and criticism.

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