If I have a contact list, say "Classmates", can I search for any emails from those contacts in Gmail without expanding the list?
I can expand the list into individual names e.g.:
from: (firstname.lastname@example.org OR email@example.com OR firstname.lastname@example.org)
This does not work well if the list is heavily dynamic; I have to update the search filter each time I update the list. What I would like to do is have a filter that applies to the un-expanded contact list. Is this possible?