Something

bind  pager /   search
bind  pager L   list-reply
bind  pager b   bounce-message
bind  pager f   forward-message
bind  pager m   mail
bind  pager a   reply          # 'a' is for "answer"
bind  pager g   group-reply
bind  pager j   next-line
bind  pager k   previous-line
bind  pager :   enter-command

bind  index x   sync-mailbox
bind  index a   tag-prefix
bind  index \;  tag-entry

bind  pager  p previous-undeleted
bind  pager  n next-undeleted
bind  pager  \n next-unread
bind compose \n send-message
bind compose s send-message

bind  pager   <up>     previous-line
bind  pager   <down>   next-line
bind  pager   <left>   exit
bind  pager   <right>  view-attachments
bind  attach  <left>   exit
bind  attach  <right>  view-attach
bind  index   <right>  display-message
macro index   <left>   "c?"
bind  browser <right>  select-entry
bind  browser <left>   exit
macro pager   G       "!fetchmail\r"
macro browser G       "!fetchmail\r"