IMPORTANT NOTE: To avoid loss of data (i.e. emails, contacts, calendar events, etc.) you must create a back-up of your data prior to moving from Network Solutions Hosted Exchange email to Office 365.


Office 365 is hosted on a different server than our Hosted Exchange service.  Moving an email service from Hosted Exchange to Office 365 will require the process detailed below.

WARNING: This process will require some downtime starting with step 2 and lasting until all steps have been completed and the DNS propagates, which could take up to 4 hours. During this time, it will not be possible to receive incoming email. Please ensure you have sufficient time to perform these steps in order to ensure minimum disruption to your email service.


NOTE: It is not possible to have mailboxes associated with a domain to be hosted with Office 365 and another email service simultaneously. All of the mailboxes on a domain must be moved to the Office 365 service.

For each mailbox that is moving from Hosted Exchange to Office 365, make a backup of the data. 

Outlook Users on PC Using POP/IMAP

  1. 1. Navigate to File > Open & Export > Import (this includes exporting options as well).
  2. 2. Select Export to a File > Outlook Data File (.pst).
  3. 3. Select the name of the account you are backing up and not just the folder Inbox (e.g. then click Next.  
  4. 4. Note the location and name of the file you create (you can change this by clicking the button labelled Browse.  Leave the option “Replace Duplicates…” selected and click Next.
  5. 5. (Optional) add a password to your Data File.  This is not necessary or commonly used.

Users of other email clients

It is recommended that you export your messages, calendars, contacts, and any other data that you’d like to keep using the instructions provided by your current service provider.  Contact your provider for assistance.


NOTE: This step will start your down time. Once you un-assign an account, all incoming email to that account will be rejected and the messages will bounce back to the sender.
  1. 1. Log into Network Solutions Account Manager
  2. 2. Click My Email.
  3. 3. Select Manage in the Microsoft Hosted Exchange section.
  4. 4. From the Microsoft Hosted Exchange page, select Control Panel. In the Control Panel, select Users from the top menu bar.
  5. 5. Check the box(es) of any mailboxes you are un-assigning and click Delete.
  6. Remember:  All mailboxes under the domain name you plan to setup in Office 365 must be unassigned.
  7. 6. Return to the Microsoft Hosted Exchange page in Network Solutions Account Manager.  In the Microsoft Hosted Exchange Details section, click on Change or Assign Additional Domains.
  8. 7. Under the Domain names currently assigned section, click on remove next to the domain name that you wish to use with your Office 365 mailbox.
  9. 8. Click on Apply Changes to complete the removal.
  10. 9. Click on Save to save the change.


Once all of your Hosted Exchange boxes are unassigned in the Network Solutions Account Manager, you can create the mailboxes in Office 365.

  1. 1. Log into Account Manager
  2. 2. Click Microsoft Office 365 underneath the "My Products and Services" tab.
  3. 3. Click Assign First User.
  4. 4. Choose whether to use a domain in your Network Solutions account or another domain and follow the prompts to assign the domain and create a user.
NOTE: If your domain is hosted with Network Solutions, your DNS records will be set up automatically. If you domain is not hosted with Network Solutions, it will be necessary to manually change the records with your current DNS provider.


Outlook 2016/2019

  1. 1. Click on File (top left) then Add Account.
  2. 2. Enter your Email Address then click Connect (advanced options are not needed when setting up your new Hosted Exchange Account)
  3. 3. Enter your email password when prompted.
  4. 4. Your account is now set up.

Outlook 2013 or Older

  1. 1. Click on File (top left) then Add Account.
  2. 2. Enter your name (as you would like people to see it on outgoing emails), your Email Address, and your Password (including where you confirm password).  Click Next.
  3. 3. Wait for Outlook to configure account automatically and re-enter Password if prompted.
  4. 4. Your Hosted Exchange account is now set up in Outlook.


Outlook Users on PC

  1. 1. Make sure you have added your Microsoft Office 365 Hosted Exchange account to Outlook as outlined above.
  2. 2. Navigate to File > Open & Export > Import.
  3. 3. Select Import from another program or file then click Next.
  4. 4. Select Outlook Data File (.pst).
  5. 5. Click Browse and navigate to the file you created earlier in this article during Step 1. Leave Replace duplicates… option selected. Click Next.
  6. 6. Select the name of the previous account from the folders listed above (e.g. or Outlook Data File).  Under Import items into the same folder as select the name of your new Hosted Exchange email account (e./g. Click Finish.