It can be useful to categorise people into different groups, for the purposes of quickly limiting and tagging by that group in mail folders.
To store people/group information in a separate file, source it from your ~/.muttrc
# source list of people/groups source "~/.mutt/groups"
The groups file might look a bit like:
# friends group -group friends -addr Easter Bunny <eb@…> group -group friends -addr Snow White <sw@…>
# foes group -group foes -addr Dr Claw <dc@…> (..etc)
Then when running mutt, you can simply use eg:
T%f friends
To eg tag, all the email messages that are from anyone in your "friends" group.
For more info see: