If i use 'cyradm -u cyrus -auth plain localhost' i have no problems. If i try 'cyradm -u cyrus localhost' i get a core dump! Why ? In the first safe case always cyradm prompts twice for password: 'Please enter you password:' and 'IMAP password:'. The first seem to be useless, howewer when i use automated scripts in perl (Admin.pm) i call client->authenticate(-mechanism => 'plain' , -user => 'cyrus', -password => 'mypassword') to avoid password prompt. In such case i have always the 'Please enter your password:" prompt that makes my script interactive! How can i eliminate it ? Thanks! (sorry for my bad english) Niko