Can't send or receive email and "Metered Connection Warning" is triggered in Outlook 2016

In Microsoft Outlook 2016 version 16.0.6769.2017 or a later version of a Click-to-Run installation, you experience the following symptoms:

-New email messages are not received in Outlook.
-When you send an email message, it is not sent and remains in the Outbox.
-When you try to configure a new Outlook profile with an IMAP account, you receive the following error message:

 Internal MAPI error: The profile does not contain the requested service. Contact your administrator.

-When you click File in Outlook, the following warning messages are displayed:

  • Metered Connection Warning   
    We noticed the metered connection you're on may charge extra and this Office program might access online content. You may want to:
       -Tap or click the network icon and turn on Airplane mode to go offline
       -Connect to a WiFi or LAN network that isn't metered
       -Check the status of your data plan with your mobile operator

  • Upgrade in Progress
       Your mailbox is currently being optimized as part of upgrading to Outlook 2016. This one-time process may take more than 15 minutes and       performance may be affected while the optimization is in progress

To work around this issue, revert the Office 2016 Click-to-Run installation to the 16.0.6741.2021 version. To do this, follow these steps:

  1. Exit all Office applications.
  2. Open an elevated command prompt. To do this, click Start, type cmd in the Start Search box, right-click Command Prompt or cmd.exe, and then click Run as administrator.
  3. At the command prompt, type the following command, and then press Enter:

  4. Type the following command, and then press Enter:

  5. When the repair dialog box appears, click Online Repair.
  6. Click Repair, and then click Repair again.
  7. After the repair is complete, start Outlook.
  8. Click File, and then click Office Account.
  9. In the Product Information column, click Update Options, and then click Disable Updates.
    Important note This step is very important. The repair process re-enables automatic updates. To prevent the newest version of Office Click-to-Run from being automatically reinstalled, make sure that you follow this step.
  10. Set a reminder in your calendar for a future date to check this Knowledge Base article (3161084) for a resolution for this issue. Enable automatic updates in Office again after this issue has been fixed. Enabling automatic updates again will make sure that you don't miss future updates.