starttls not available on imapd

General Interworx Control Panel Info General Inquries
1

I did noticed that starttls is not available on iworx courier imapd:

telnet localhost 143

* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE] Courier-IMAP ready. Copyright 1998-2003 Double Precision, Inc.  See COPYING for distribution information.

I do have a similar courier version on another machine (w/o iworx) and it does support it:

* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2004 Double Precision, Inc.  See COPYING for distribution information.

I did compared configuration files and they are very very similar, I guess the problem may be related to the way iworx uses courier with tcpserver, any ideas to sort it?

2

Well, we use IMAP-SSL instead of StartTLS, which is slightly different. At present we don’t have a StartTLS solution in place.