How can I control how many emails group members receive?
Members can control their email settings individually.
As an organizer, each time you create a card, by default this is sent to members as an email. By un-checking the box in the lower left side of a card to “Send notifications” to choose to not send this card out as an email. Note: you can edit this card later and check the “notifications” option, to control when a card out as an email.