Regular response
S: * OK [CAPABILITY IMAP4rev1 (...) STARTTLS] imapf06.mykolab.com Cyrus IMAP Murder 2.5.6.3-Kolab-2.5.6-3.1.el6.kolab_14 server ready
Guam response
S: * OK [CAPABILITY IMAP4rev1 (...)] server ready
S: * OK [CAPABILITY IMAP4rev1 (...) STARTTLS] imapf06.mykolab.com Cyrus IMAP Murder 2.5.6.3-Kolab-2.5.6-3.1.el6.kolab_14 server ready
S: * OK [CAPABILITY IMAP4rev1 (...)] server ready