Hi Bron, thanks for the long explanation, even if I don't understand everything. :-) It sounds like there is no way to fix this by a configuration parameter or migrating a database or so. And if the only way is to patch the current version or compile a new one, then I think the new one is the better idea. Can I keep the cyrus-sasl packages from my distribution and just replace the imapd with the latest version? This are the cyrus packages I currently have installed cyrus-imapd-2.3.16-6.el6_1.2.x86_64 cyrus-imapd-utils-2.3.16-6.el6_1.2.x86_64 cyrus-sasl-2.1.23-8.el6.x86_64 cyrus-sasl-lib-2.1.23-8.el6.x86_64 cyrus-sasl-plain-2.1.23-8.el6.x86_64 When I upgrade to 2.4.10, are there any migrations I have to do (like databases)? Or can I just compile and update the daemon and utils and start cyrus again? Regards, Marc ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/