Why does Apple Mail always gives an error that it can verify the identity of a server whenever I check for new mail or send a message?
The message will typically look like above, though the server name may be different. Clicking Connect allows you to continue without further error. This is happening because you have installed the Dartmouth root certificate on your Mac, but have not yet configured it as trusted. To fix this: • Open up the Keychain Access* application from Applications/Utilities. • On the left, under Keychains highlight login (OS 10.5 Leopard) or X509 (OS 10.4 Tiger) • In the list of items, locate the Dartmouth CertAuth1 certificate and double-click on it. • In the Dartmouth CertAuth1 window, click the small triangle next to Trust to expand the options, then open the drop-down menu next to When using this certificate: and select Always Trust. Close the Dartmouth CertAuth1 window by clicking the red button in the upper left corner. • When prompted, enter your local OS X administrator username and password to set the change. • You may now quit Keychain Access. You should no longer see these error messages
