post https://api2.frontapp.com/channels//outbound_messages
Import a message that was sent from the channel.
Replies to channel messages must use the same channel.
You cannot receive an inbound message through a channel, and then reply to the message via another Front inbox such as your personal email account or a team inbox. If you would like to receive a message via a non-native channel and then reply to the message via another Front inbox, use the Import Message API endpoint instead.