SharePoint 2010 allows e-mail messages to be saved into document or picture libraries and certain types of lists (calendars, announcements, discussions).  The list or library can be given an e-mail address.  All e-mails sent to this address are stored as documents or list items.  If the e-mail message contains an attachment, the attached file is saved as a separate document, either in the root folder or in separate folders grouped by e-mail subject or by e-mail sender. The list or library can be configured to accept e-mails from any sender or from only people who have access to that document library.  This allows groups to direct e-mails to SharePoint by including the correct e-mail address when communicating with the other group members.

If the list is a Calendar list, then meeting invitations can be send to the Calendar.  A new appointment will be created in the Calendar.