To quickly configure Evolution, see Red Hat Getting Started Guide, Chapter 6: Email Applications
You may also want to set it up like this:
Tools
Settings
Click on line listed under the Account name.
Click Add [or Edit if Edit is listed]
...
Click on the Receiving Options tab:
x Automatically check every 1 minute(s)
x Check for new messages in all folder
Folders:
x show only subscribed folders
Then click Apply
Tools
Settings
Click on Folder Settings along the left
Mail: [click to the right of Mail]
Click on the + under user@acme.com
Click on INBOX
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