You look on the device itself... The list is also in this KB article: http://support.microsoft.com/default.aspx?kbid=915840 However even if you use a certificate from someone else (like RapidSSL) then it isn't too difficult to install their root as well. Simon. -- Simon Butler MCP, MCSA, MVP:Exchange Amset IT Solutions Ltd. e: simon@xxxxxxxxxxxx w: www.amset-it.com w: www.amset.info ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Chris Wall Sent: 05 April 2006 16:21 To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Mobile Messaging - SSL question Hello all, I have seen somewhere a listing of the SSL Certificates that are supported by Mobile Devices when using Mobile Messaging with Exchange 2003. I have searched and searched and can not find that list any longer. Does anyone know where I can find that list? Thanks, Chris Wall - MCSE + Messaging, MCSA NAM Exchange Administrator Chris.Wall@xxxxxxxxxxxxxxxxxxx T (919) 460-3236 F (919) 468-4889 Global Knowledge LEARNING. To Make a Difference. http://www.globalknowledge.com <BLOCKED::http://www.globalknowledge.com/>