How to create a channel dedicated to a specific sender?
You might want to create a dedicated channel for a specific sender(s) ( e.g. #co-jane-doe stemming from #contact) so your conversations won't be lost in the crowd of other messages from different people.
You can do so, by clicking Move to a new channel in the All actions menu under emails:
If you can't access this option, ask your admin to authorize it by activating Enable ‘Move to new channel’ action in the Settings Interface.