Fri, 10 Apr 2026 10:04:40 +0000 https://bugs.horde.org/ticket/7865 Capability Command Courier-Imap When trying to use imp with courier-imap, following errors occur: Screen Notice: Undefined index: capability in /usr/share/php/Horde/Imap/Client/Socket.php on line 133 Horde.log Jan 17 14:45:48 HORDE [error] [imp] IMAP error: Error in IMAP command received by server. [pid 18003 on line 3251 of "/usr/share/php/Horde/Imap/Client/Socket.php"] Sat, 17 Jan 2009 14:00:35 +0000 https://bugs.horde.org/ticket/7865#t51807 Please turn on IMAP logging in IMP (see imp/config/servers.php.dist) and post the portion of the IMAP log that deals with the CAPABILITY command. Sat, 17 Jan 2009 23:54:57 +0000 https://bugs.horde.org/ticket/7865#t51817