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Added potential error message and solution.
*you should now start and enable dovecot, httpd and restart postfix if it was already running.
*test your connection to SquirrelMail by opening a browser and navigating to vm02/mail. You should see a log in page. Sign in using your login credentials on vm02.
**You may receive an error stating: 'Error connecting to IMAP server: localhost. 13 : Permission denied'. If you do, run the command 'setsebool -P httpd_can_network_connect=1'. This will set an SELinux boolean to allow httpd connections across the network.
*You will need to open ports on your firewall to allow connections to the webserver, and port forwarding on the host.
