I got the same problem after a system upgrade. The /usr/bin/imapd binary contains the correct string (with the space between "*" and "OK"), but still the IMAP client complains. So the problem seems not to be the space.
I did not investigated deeply, I fixed installing libgaim0 instead of libfam0. Versions of packages installed: ii courier-authdaemon 0.63.0-3 Courier authentication daemon ii courier-authlib 0.63.0-3 Courier authentication library ii courier-authlib-userdb 0.63.0-3 userdb support for the Courier authentication library ii courier-base 0.65.0-2 Courier mail server - base system ii courier-imap 4.8.0-2 Courier mail server - IMAP server ii courier-imap-ssl 4.8.0-2 Courier mail server - IMAP over SSL ii courier-pop 0.65.0-2 Courier mail server - POP3 server ii courier-pop-ssl 0.65.0-2 Courier mail server - POP3 over SSL ii courier-ssl 0.65.0-2 Courier mail server - SSL/TLS Support -- Niccolo Rigacci Firenze - Italy -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
