Various embodiments of the present invention provide for enhanced calendaring functionality in a collaboration suite application. A mini-calendar display in different views of the collaboration suite application provide for an easy way to view, edit and/or add appointments without needing to open of the calendar in the collaboration suite application. Email messages can be dragged onto days in the mini-calendar to create meeting proposals. Enhanced UI allows for different meetings being having different appearances based on whether they have been accepted, rejected, etc. Multiple calendars can be viewed simultaneously and their cumulative availability for any time slot can be easily seen via a calendar thermometer. Requests for sharing of calendars can be communicated via email messages, and they can be seamlessly responded to within the email message itself.