In Outlook 2010 a new feature has been added. You can now create a meeting from an e-mail message. This process is the same in Outlook 2013.
There are several things to consider when creating an Appointment in your Outlook calendar. All-day event vs. individual time slot, free vs. busy, setting reminders and recurrence information. You can even insert your e-mail signature in the “Insert” tab.
When you send out a meeting request to a group of people, there is always the chance that some of the recipients will not respond. You can quickly re-send the meeting request to those who have not responded.
You can drag an email onto your calendar to create an appointment. This will allow you to set a reminder to follow-up on the e-mail.
You can change the time increments shown in your Outlook calendar to allow for smaller more detailed calendar entries.