If you’re comfortable using most email services, you can choose any of the three webmail programs: Horde, RoundCube, or SquirrelMail. Once you determine which service you like the best, you can click the link that says “Enable Autoload” so that you’ll automatically be directed to it next time you log in. If you prefer the simplest option available, then Choose the link that says Squirrel Mail. You will automatically be in the Inbox folder. SquirrelMail has the least amount of features. Horde has the most features and options. Review the tutorials below if you need more assistance.
SquirrelMail Tutorials
Roundcube Tutorials
Horde Tutorials