docker run -it --rm \
-e TERM \
-e [email protected] \
-e GMAIL_NAME='John Smith' \
-u "$(id -u):$(id -g)" \
-e HOME=/home/user \
-v "$HOME/.signature:/home/user/.signature" \
-v "$HOME/.muttrc:/home/user/.muttrc.local" \
-v "$HOME/.mutt/cache:/home/user/.mutt/cache" \
tianon/mutt-gmail
If you wish to avoid the password prompt, use https://support.google.com/accounts/answer/185833?hl=en to generate an "app password" and set GMAIL_PASS.