Allow to set a value to the reply-to email header when creating a new email - at least when we create that email through api : https://www.getresponse.com/help/reply-to-field.html
Allow multiple periods of business hours in a single day
It would be great to be able to split business hours between morning and afternoon times to ensure SLAs and response times don't get impacted by team unavailability during lunch
Allowing admins to create empty teammate groups so they can better plan and organize groups. Sometimes teams will want to create groups before adding teammates and currently this is not possible as you cannot create an empty group.