How many total hours per week is your team spending on customer support? Is it 20 or more? Hire a dedicated support person or agency, even if they're part time.

How many total hours per week is your team spending on customer support? Is it 20 or more? Hire a dedicated support person or agency, even if they're part time. Do you still want everyone else to have skin in the support game? Figure out how much time per week it's reasonable for each other member of the team to spend. Have them plan to spend 15 min per day on followup emails. Then schedule dedicated hours for each person to be on call for support so that they don't have to worry about being interrupted all the time but you still have coverage.