On 04/29/2014 02:48 PM, Hügel, Christian wrote: > sieve is working with roundcube only with sieveshell (CLI) I get the > described error. sieveshell does not support TLS (as I know), but sieve server requires it (as I see in your telnet session). -- Aleksander Machniak Software Developer Kolab Systems AG: http://kolabsys.com PGP: 19359DC1