Update mailing-lists.md

Author: LandonTClipp

docs/notes/sysadmin/linux/mailing-lists.md

@@ -18,39 +18,8 @@ This will generate two strings, client_id and client_secret.
 
 ### Step 2: generate OAuth2 token
 
-Use Google’s OAuth2 authentication script https://github.com/google/gmail-oauth2-tools/blob/master/python/oauth2.py to generate an OAuth2 refresh token.
+Run the following script:
 
-`python oauth2.py --generate_oauth2_token --user={user} --client_id={client_id} --client_secret={client_secret}`
+<script src="https://gist.github.com/LandonTClipp/84b4855fbca0f1d088990a8f7a6e00de.js"></script>
 
-`{user}` is the email address you use to login to Gmail.
-`{client_id}` and `{client_secret}` are the strings you got from Step 1.
-The script will ask you to visit a URL in your browser and follow some directions, and prompt you for a verification code. After visiting the URL and agreeing to various things, you will be provided a verification code (from https://oauth2.dance). Enter this verification code into the script prompt. The script will then print the Refresh Token (in addition two other things that are not needed).
-
-### Step 3: configure account in aerc
-
-Edit the accounts.conf file in your aerc configuration directory (usually ~/.config/aerc/), and add the following:
-
-```
-[{account_name}]
-source   = imaps+oauthbearer://{user}:{refresh_token}@imap.gmail.com:993?client_id={client_id}&client_secret={client_secret}&token_endpoint=https%3A%2F%2Foauth2.googleapis.com%2Ftoken
-outgoing = smtps+oauthbearer://{user}:{refresh_token}@smtp.gmail.com:465?client_id={client_id}&client_secret={client_secret}&token_endpoint=https%3A%2F%2Foauth2.googleapis.com%2Ftoken
-default  = INBOX
-
-```
-
-{account_name} is whatever you would like to name this account in aerc.
-{user} is the email address you use to login to Gmail (same as in Step 2), except it should be URL-encoded (replace @ with %40).
-{refresh_token} is the refresh token you got from Step 2, except it should be URL-encoded (replace / with %2F).
-{client_id} and {client_secret} are the strings you got from Step 1.
-
-!!! tip
-
-    You need to follow the directions from the oauth2.py script regarding redirect URIs:
-
-    ```
-    NOTE: The OAuth2 OOB flow isn't a thing anymore. You will need to set the
-    application type to "Web application" and then add
-    https://google.github.io/gmail-oauth2-tools/html/oauth2.dance.html as an
-    authorised redirect URI. This is necessary for seeing the authorisation code on
-    a page in your browser.
-    ```
+This creates a file at `~/.config/aerc/accounts.conf` with proper credentials. You might need to configure aerc to use this path instead of its default accounts.conf path.