Email to a chat group or email using @mentions

When I'm in chat, I can do team or personal mentions and it works as expected.  I need to use our automated system to send an email either using those mentions or else to the chat so people get notifications on their phones as well as the banner notifications.  We're trying to establish a "no internal email" within our group and using teams exclusively.  Allowing our automated workflows to use this is the last hurdle!