Ubuntu is one of the most popular desktop distros around, and it comes with many useful applications. But if you're looking for an application that can do email, calendar, address book functionality and more then Evolution should be right at the top of your list.
Evolution is free and open source software. So it won't cost you a cent to install it on your Ubuntu computer. And since Evolution covers a lot of productivity bases all in one application, you might find yourself able to get rid of some of your other applications and free up some disk space.
Wikipedia has a helpful list of features found in Evolution:
E-mail retrieval with the POP and IMAP protocols and e-mail transmission with SMTP.
Secure network connections encrypted with SSL, TLS and STARTTLS.
E-mail encryption with GPG and S/MIME.
Search folders, saved searches that look like normal mail folders as an alternative to using filters and search queries.
Automatic spam filtering with SpamAssassin and Bogofilter.
Connectivity to Microsoft Exchange Server, Novell GroupWise and Kolab (provided in separate packages as plug-ins).
Calendar support for the iCalendar file format, the WebDAV and CalDAV standards and Google Calendar.
Contact management with local address books, LDAP and Google address books.
Synchronization via SyncML with SyncEvolution and with Palm OS devices via gnome-pilot.
Evolution's address books can be used as a data source in LibreOffice.
An RSS reader plug-in.
Here's how you can install GNOME's Evolution mail and calendar application in Ubuntu 14.04.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository ppa:fta/gnome3
sudo apt-get update
sudo apt-get install evolution
3. Use this command to remove Evolution.
sudo apt-get remove evolution
Hat tip: Install Evolution 3.13.2 in Ubuntu 14.04 | LinuxG