I am trying to set up Davmail with either MacMail or Thunderbird for use with the CAC card accessing a MS Exchange server. I have an Oberthur 5.2a CAC card running Lion. DavMail starts up ok it seems. However, when I open the Mac Mail program and try to establish a connection I get a: Devmail - DavMail configuration exception: Connect exception: javax.net.ssl.SSLHandshakeException Error signing certificate verify in the log file. I am using the old /usr/libexec/SmartCardServices/pcs11/tokendPKCS11.so File for the PCS11 library in the DavMail Gateway Settings This may not be right, as this is not set up for Lion. However, I do not understand what the right file should be. I have installed the new OS X Lion SmartCardServices Installer v2.0b1 (beta) and it works very well with Safari. I have a similar problem with Firefox, however (what PKCS library file should I be using? Please help! Thanks, Paul