Ability to add and remove inbox delegations for other teammates

Front's inbox delegation feature allows you to give another user temporary access to your inbox (to view and take some actions, but not respond or comment by impersonating you). It means that if a customer writes into that individual inbox, it won't get missed.

Currently, only the owner of an individual inbox can delegate it, but we have heard from several customers that they would like to delegate one user's inbox to another user. These are the main use cases:

• Employee offboarding - keep that person's inbox live for a window of time, and delegate it to someone else in the team

• Someone is away unexpectedly (e.g. off sick), forgot to delegate before going on PTO or set up the delegation incorrectly

• A new user is onboarding, and their supervisor would like to view the new user's inbox or share their own inbox, as part of the training

There are currently a couple of workarounds but they are not ideal

• Delegate the inbox directly in gmail or outlook - not available for all channels, and it means the conversation history is lost

• 'Log as' the user from the Identity Provider and set up the delegation. Okta allows this, but it can break offboarding workflows