Hi Mark, Thank you for your help. I checked the systems that could not connect to OWA (Secured site), they all have cipher strength of 56-bits. 128-bit is required. I install Windows 2000 service pack 4 on such systems and they are now on 128-bit cipher strength, this is working perfectly. Thanks, Halimat "Taylor, Mark" <Mark.Taylor@xxxxxxxxx> wrote: http://www.MSExchange.org/ Hi, If you you go: Help --> About in Internet Explorer, it will tell you what cipher strength you are using. You don't need IIS on the clients. Regards Mark --------------------------------- From: Halimat Omeiza [mailto:izehomeiza@xxxxxxxxx] Sent: 24 January 2006 15:57 To: [ExchangeList] Subject: [exchangelist] HTTP Error 403.5 - Forbidden: SSL 128 is required to view this resource http://www.MSExchange.org/ HTTP Error 403.5 - Forbidden: SSL 128 is required to view this resource We use Exchange 2003 and Outlook Web Access to access our mail from a secured site. I get the above error message when I try to access my mails with OWA. Attached also is the error page. I have upgraded the Internet explorer to version 6 from version 5. Please how can this problem be solved. I have visited the microsoft site, it gives the following solution: We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. Must I install IIS on my local system, or must all users having this problem install IIS on their respective PCs. Thank you. Halimat. --------------------------------- What are the most popular cars? Find out at Yahoo! Autos ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: mark.taylor@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx ______________________________________________________________________ This inbound email to MET has been scanned by the MessageLabs Email Security System for Spam and Viruses ______________________________________________________________________ DISCLAIMER: This e-mail contains proprietary information some or all of which may be legally privileged. It is for the intended recipient(s) only. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print or rely on this e-mail. Any form of reproduction, disclosure, modification, distribution and/or publication is strictly prohibited unless expressly authorised by the author. This e-mail is sent for informational purposes only and whilst the contents are provided in good faith, no person should rely on it without written confirmation. The presence of this disclaimer also confirms that this e-mail has been scanned for viruses as it left the MET domain. MET cannot be held responsible for any viruses picked up during transmission of this e-mail. ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: izehomeiza@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to info@xxxxxxxxxxxxxx Halimat Ize Omeiza --------------------------------- Bring words and photos together (easily) with PhotoMail - it's free and works with Yahoo! Mail.