Created Unassigned: Accessing ImapClient Folders property after connect to a MDaemon IMAP Server, NullReferenceException is throw [2368]

Here is the debug log:

IMAPX1 CAPABILITY

* CAPABILITY IMAP4rev1 NAMESPACE AUTH=CRAM-MD5 AUTH=LOGIN AUTH=PLAIN IDLE COMPRESS=DEFLATE ACL UNSELECT UIDPLUS QUOTA BINARY XLIST
IMAPX1 OK CAPABILITY completed
IMAPX2 LOGIN "mymail" "mypassword"

IMAPX2 OK LOGIN completed
IMAPX3 XLIST "" %

* XLIST (\Inbox) "/" "INBOX"
* XLIST () "/" "Archive"
* XLIST (\Drafts) "/" "Bozze"
* XLIST () "/" "Certificati"
* XLIST () "/" "Comunicazioni Interne"
* XLIST () "/" "Deleted Messages"
* XLIST () "/" "Drafts"
* XLIST () "/" "Azienda Intranet"
* XLIST (\Spam) "/" "Junk E-mail"
* XLIST () "/" "Junk"
* XLIST () "/" "Licenze"
* XLIST () "/" "Notes"
* XLIST (\Trash) "/" "Posta eliminata"
* XLIST () "/" "Posta indesiderata"
* XLIST () "/" "Posta indesiderata1"
* XLIST (\Sent) "/" "Posta inviata"
* XLIST () "/" "Progetti"
* XLIST () "/" "Sent"
* XLIST () "/" "Trash"
* XLIST () "/" "AziendaDocumenti"
IMAPX3 OK XLIST completed
IMAPX4 EXAMINE "INBOX"

* FLAGS (\Seen \Answered \Flagged \Deleted \Draft \Recent $Forwarded $MDNSent)
* 991 EXISTS
* 0 RECENT
* OK [UIDVALIDITY 1172479359] UIDs valid
* OK [UIDNEXT 6158] Predicted next UID
* OK [PERMANENTFLAGS ()] No permanent flags permitted
IMAPX4 OK [READ-ONLY] EXAMINE completed
IMAPX5 LOGOUT

* BYE IMAP engine signing off (no errors)
IMAPX5 OK LOGOUT completed

The problem is that when ImapClient parse this string __* XLIST () "/" "Archive"__ to popolute list folder, Regex expression doesn't find anything..