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Gmail supports use of RFC 7628 ("OAUTHBEARER") to avoid using
password-based authentication with some mail clients. This package
provides a tool that can perform this authentication.
To use it, you will need to register an application and client ID through the
Google APIs Console, https://console.developers.google.com/apis/credentials
See https://github.com/google/gmail-oauth2-tools/wiki/OAuth2DotPyRunThrough
for more information.
Quick setup guide for Mutt
--------------------------
First, you'll need to register as above and fetch your client id and
secret. Then use them with oauth2.py to generate a token:
oauth2.py --generate_oauth2_token --client_id=[...] --client_secret=[...]
This will display a URL to open. Do this, grant permission, and copy
the code you are given. Paste it into oauth2.py, and you will be given
a "refresh token". Copy this.
Then configure mutt using your client id, secret, and the refresh
token:
set imap_authenticators="oauthbearer"
set imap_user="<email_address>"
set imap_oauth_refresh_command="oauth2.py --quiet --user=USER --client_id=CLIENTID.apps.googleusercontent.com --client_secret=CLIENT_SECRET --refresh_token=REFRESH_TOKEN"
set smtp_authenticators="oauthbearer"
set smtp_url="smtps://USER@gmail.com@smtp.gmail.com:465"
set smtp_oauth_refresh_command="oauth2.py --quiet --user=USER --client_id=CLIENTID.apps.googleusercontent.com --client_secret=CLIENT_SECRET --refresh_token=REFRESH_TOKEN"
