• SMS
  • Mobile Number Registered
  • Mobile Number Not Registered
• Authenticator App
  • To register the application:
  • Successful Registration 
  • Lost / Stolen Devices
• Logging in to Outlook w/ MFA

When 2-Step Authentication is enabled, logging in to Mimecast requires an additional step. You'll enter your email address, choose between a Mimecast cloud or domain password, and enter your password as normal. However, once that is completed successfully, you'll be asked for a verification code.

Your IT department will decide how you receive this verification code, which can be via:

• SMS
• 3rd Party Application (e.g. Microsoft Authenticator).

Mobile Number Registered

If you're configured to receive the verification code via SMS, and your number is already registered, you will see a screen as below once you have successfully entered your password:

Note:   The last 2 digits of the phone number are displayed as the delivery destination.

1. Enter the Verification Code you receive to your mobile.
2. Click on the Verify button.

Mobile Number Not Registered

If you're configured to receive the verification code via SMS, and your RingCentral number is not yet registered, you can self-register during the 2-Step Authentication login process. You will see a screen as below after you have successfully entered your password:

1. Select your Country Code by clicking the down arrow next to the flag icon. The default value is taken from your browser's location.
2. Enter your RingCentral Number with no leading zeroes.
3. Click on the Next button.
4. Enter the Verification Code you receive to your mobile.
5. Click on the Verify button.

If you're configured to authenticate via a 3rd party application, the next time you log in, you'll have to register your application. Registration is the process of linking the application on your cell phone with Mimecast so that the application generates verification codes we can use to verify your identity.

To register the application:

1. Download an Authenticator Application(e.g. Microsoft Authenticator) from your app store 
   • Note:   Ask the IT department for guidance if you already have the app installed
2. To display a six digit verification code, either:
   • Scan the QR Codedisplayed using the authenticator application.
     1. Open the Microsoft Authenticator App
     2. Select the 3 vertical dots in the upper right corner (Customize and Control icon)
     3. Select Add Account, and then Choose “Other Account”
     4. Scan the QR code on your computer screen.
   • Press the Enter key.
     
3. Log in using your user ID and password.
4. Click on the Next button.
5. Enter the Verification Code.
6. Click on the Log In button.

Note: Keep your authenticator application on your phone as you'll need it each time you log in. If you can't log in, contact the PRM IT department for assistance.

Successful Registration 

When your second factor has been successfully registered, you will receive a confirmation email.

Lost / Stolen Devices

If the device you've used to set up an authenticator application with Mimecast is lost or stolen, contact the PRM IT department as soon as possible. They'll be able to force a re-registration for you.

Once you can receive your code you can now login to the Outlook Add-in. Now when you sign in you will need to enter a 6 digit code.

After you enter in your password, you will be asked to add a 6 digit code. Open you authenticator app to view what the code is and enter it into Mimecast within Outlook like so:

Congrats you are now signed in!