Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft.
Book new leads across rep calendars and log each meeting.
Your inbound leads get a meeting invitation at the first open time on their rep's calendar, or a follow-up email when no time is open.
Route proposal rejection emails to the responsible deal owners.
Your deal owners get rejection emails when someone else created the proposal, so they know which offer needs revision.
Reply to pipeline questions with checked CRM figures and filters.
Get a sales pipeline report in the same email thread, with the deal count or value and the filters behind it.