[PERDITION-USERS] Problems with IMAP4S LOGIN command

Hi everybody, Since an upgrade to our backend IMAPS server (Zarafa 6.20.7), we have some trouble authenticating via our perdition IMAP4S proxy (version 1.17-7etch1). I've enabled debug and connection logging, and I see that the LOGIN command is splitted in 3 lines instead of sending the whole command in one. Is that normal? Can I configure it somewhere? Here is the log I get: Jul 2 14:33:45 floor perdition[9781]: Connect: xx.xx.xx.xx -> [IP proxy] Jul 2 14:33:45 floor perdition[9781]: SSL connection using AES128-SHA Jul 2 14:33:45 floor perdition[9781]: SELF: "* OK IMAP4 Ready floor 0001d839\r\n" Jul 2 14:33:46 floor perdition[9781]: CLIENT: "1.584 CAPABILITY\r\n" Jul 2 14:33:46 floor perdition[9781]: SELF: "* CAPABILITY IMAP4 IMAP4REV1\r\n" Jul 2 14:33:46 floor perdition[9781]: SELF: "1.584 OK CAPABILITY\r\n" Jul 2 14:33:46 floor perdition[9781]: CLIENT: "2.584 LOGIN piekjepuk 6012417\r\n" Jul 2 14:33:46 floor perdition[9781]: username_add_domain: username_add_domain 0 1 0x807bd1c Jul 2 14:33:46 floor perdition[9781]: getserver: do_dbserver_get Jul 2 14:33:46 floor perdition[9781]: SSL connection using AES256-SHA Jul 2 14:33:46 floor perdition[9781]: REAL: "* OK Zarafa IMAP gateway ready\r\n" Jul 2 14:33:46 floor perdition[9781]: SELF: "flim07 CAPABILITY\r\n" Jul 2 14:33:46 floor perdition[9781]: REAL: "* CAPABILITY IMAP4rev1 CHILDREN XAOL-OPTION IDLE\r\n" Jul 2 14:33:46 floor perdition[9781]: REAL: "flim07 OK CAPABILITY Completed\r\n" Jul 2 14:33:46 floor perdition[9781]: SELF: "flim08 LOGIN {6}\r\n" Jul 2 14:33:46 floor perdition[9781]: REAL: "flim08 BAD LOGIN must have 2 arguments\r\n" Jul 2 14:33:46 floor perdition[9781]: imap4_out_response: invalid tag from server 1 Jul 2 14:33:46 floor perdition[9781]: imap4_out_authenticate: imap4_out_response login Jul 2 14:33:46 floor perdition[9781]: SELF: "piekjepuk {7}\r\n" Jul 2 14:33:46 floor perdition[9781]: REAL: "piekjepuk BAD Command not recognized\r\n" Jul 2 14:33:46 floor perdition[9781]: imap4_out_response: invalid tag from server 1 Jul 2 14:33:46 floor perdition[9781]: imap4_out_authenticate: imap4_out_response name Jul 2 14:33:46 floor perdition[9781]: SELF: "6012417\r\n" Jul 2 14:33:46 floor perdition[9781]: REAL: "* BAD Command not recognized\r\n" Jul 2 14:33:46 floor perdition[9781]: SELF: "* BAD Command not recognized\r\n" Jul 2 14:34:46 floor perdition[9781]: REAL: "* BYE Connection closed because of timeout\r\n" Jul 2 14:34:46 floor perdition[9781]: SELF: "* BYE Connection closed because of timeout\r\n" Jul 2 14:34:46 floor perdition[9781]: REAL: "" Jul 2 14:34:46 floor perdition[9781]: token_read: token_fill_buffer Jul 2 14:34:46 floor perdition[9781]: read_line: token_read Jul 2 14:34:46 floor perdition[9781]: imap4_out_response: read_line Jul 2 14:34:46 floor perdition[9781]: imap4_out_authenticate: imap4_out_response passwd Jul 2 14:34:46 floor perdition[9781]: main: protocol->out_authenticate -1 Jul 2 14:34:46 floor perdition[9781]: Fatal error authenticating user. Exiting child. Any ideas? Thank you very much in advance! Best regards, -- Xesc