Webuzo is ported with SquirrelMail as the default web-client to access emails. SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers. It has very few requirements and is very easy to configure and install. SquirrelMail has all the functionality you would want from an email client, including strong MIME support, address books, and folder manipulation. It is deployed along with Exim - the SMTP Email Server, which can be installed by a click from the Webuzo Enduser Panel >> Apps >> Utilities Category Guide : http://www.webuzo.com/wiki/Install_System_Apps Accessing SquirrelMail is as simple as a pie with Webuzo. Guide : http://webuzo.com/wiki/Access_Emails Issue # 1 Error : Bad request: The IMAP server is reporting that plain text logins are disabled. For instance you may face an error as follows while logging in to the web-client, which is forced SSL authentication. Fix for the above issue Step 1) Open the Dovecot Auth configuration using your favorite editor 1) SSL vi /etc/dovecot/conf.d/10-auth.conf Replace the line (Comment the line !!!) ssl = yes by #ssl = yes Save the above file !!! Step 2) Open the Dovecot SSL configuration using your favorite editor 1) Turn OFF SSL vi /etc/dovecot/conf.d/10-ssl.conf Replace the line ssl = required by ssl = no Save the above file !!! Step 3) Restart the Dovecot Service service dovecot restart That's it !!! Simple enough !!! Similar SquirrelMail issues : http://www.webuzo.com/blog/general/webuzo-email-server-fix-for-mozilla-thunderbird-and-outlook-1982.html Demo : Admin Panel : http://demo.webuzo.com/ Enduser Panel : http://demo.webuzo.com/enduser/ Support : https://www.softaculous.com/support/open.php?