Hello, Finally I am able to get the ptloader working. In my case the major issue was that I used Cyrus IMAP 2.3.7, that has a segmentation fault when reading from LDAP. This issue was previously discussed in http://www.irbs.net/internet/info-cyrus/0608/0129.html I solved the problem by updating to Cyrus IMAP 2.3.14 + doing the above mentioned configuration changes Evgeniy ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html