A gravatar is an image registered to an e-mail address.
You can submit yours on-line at http://www.gravatar.com.
The following variables offer control over how things are displayed.
nil. It default to the value of
If you want to see them in the From field, set:
(setq gnus-treat-from-gravatar 'head)
If you want to see them in the Cc and To fields, set:
(setq gnus-treat-mail-gravatar 'head)