I have recently set up a queue consisting of three associates. All Associates have valid emails in the Salesforce. I have tried a couple different settings, but nothing seems to work. First, I included the queue email and marked the check box to "send email to members". Then I removed the email address and left the check box marked. I checked my email deliverability settings and they are set for "all email". Regardless of what I do, all three users are not getting notified when a task is assigned to the queue. How can I get the email notification to be sent to all three members when a task is assigned to the queue?
I've been having the same problem.
I noticed something at this help page: https://help.salesforce.com/articleView?id=task_considerations.htm&type=5
Emails, notifications, and reminders are only sent after tasks are reassigned from the queue to a specific user.
We have setup a process builder with an email alert as a temporary solution.