Electronic communication-based storage of content items to support multiple workflows is provided. When an attached content item is received with an electronic communication, a receiving user may select the attached content item for review and editing in an immersive view pane that may be launched adjacent to or in proximity to an electronic mail viewing pane. When the received content item is edited, a copy of the edited content item is temporarily stored with the electronic communication with which the content item was received at an associated electronic communication server. When the receiving user then desires to dispose of the edited content item, for example, by replying back to the sending user with the edited content item as an attachment, the edited content item may be retrieved from the electronic communication server automatically for attachment to the responsive communication.