If you are having trouble locating records that other Users in your organization are able to find when they search, your problem could be caused by profile, role, sharing and security controls or your organization's search settings.

Salesforce Inbox is a productivity tool that integrates email, calendar, and Salesforce functionalities directly into one application, which enhances the efficiency and effectiveness of sales teams. It's available on both desktop and mobile devices and allows users to: Schedule, send, and track emails.