After setting up my mutt with Gmail, I tested it by sending an email
but it did not go through. After some research, I realized that Gmail
no longer allows less secure apps. The way around this is to set up
two step verification, then generate and use "App password". I would
like to add this to the wiki, as this will save others from the
additional work. Please let me know if I can proceed.

Thanks,

Tanju