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FermiMail: macOS - Configuring Mac Mail


4.0 - Updated on 2021-10-28 by Quinton Healy

3.0 - Updated on 2021-05-13 by Marcia Teckenbrock

2.0 - Updated on 2021-02-18 by Carlos Salazar (Inactive)

1.0 - Authored on 2015-10-30 by Hannah Ward (Inactive)

FermiMail: macOS - Configuring Mac Mail


Intended for:

This article is intended for users who need to configure Mac Mail to access their Fermilab email.


Scenario/Use case:

This article describes how to configure Mail app in macOS to access your Fermilab email account.



    1. Launch Mac Mail
    2. In the "Choose a Mail account provider" window, select "Exchange" and click "Continue".

      If you do not see the "Choose a Mail account provider" window, open "Mail" menu and then select "Add account". You will be presented the "Choose a Mail account provider" window. Select "Exchange" and click "Continue".

    3. When prompted, enter your full name in the "Name" field and then your email address in the "Email Address" field but include "services" (i.e., [USER], and then click "Sign In".

    4. When prompted to sign into your Exchange account, click "Sign in". NOTE: Do NOT click "Configure Manually".

    5. Type your name in the "Name" field, type in your email address and include "services" in the address (i.e., [USER], and then click "Sign in".

    6. For this step, there are two paths that may be presented to you:
      • Yubikey - If you have a Yubikey and it is plugged into your computer, you will be presented with a prompt to select your Yubikey certificate. Select the "FERMI Sub CA" certificate and click "OK".  You then be presented with the Smart Card window where you enter your Yubikey PIN and click "OK". NOTE: If you do not want to use your Yubikey, click "Cancel" and you will be guided through the RSA process below.

      • RSA - If you do not want to use your Yubikey or do not have a Yubikey, you will be prompted to provide an RSA passcode as part of the "Two-Factor Authentication" requirement. Enter your passcode and click "OK". If you are unsure how to generate your passcode, please review "How to use RSA hardware token to generate a passcode" or "How to install and use RSA soft token to generate a passcode".

    7. Select the "apps" you want to sync with Fermilab's Exchange server and then click "Done".

    See Also:

    FermiMail: Integrated Email and Calendar