Hello, my starting point is a plain Debian (Wheezy) installation on VM VirtualBox: everything is fine; internet connection is available and functioning. I am working on building up a mailserver using the components: Postfix, Courier, MySQL, Squirremail, so I refferred to the tutorial http://www.howtoforge.com/virtual-u...-courier-mysql-and-squirrelmail-debian-wheezy It is really great, I could adhere to the procedure entirely, reporting no errors! However, when I try to connect via web, using squirrelmail application, I get the following message: ERROR: Connection dropped by IMAP server. Is there any further (addional) setting not mentioned in the tutorial I should care of and adjust. I am stuck now; I hope someone of you may help me on finding the solution to the trouble, and finally got the service up and running. Thanks in advance for you assistance.