SMTP setup problem

Hi,
I'm trying to setup email notification - from https://localhost:9443/jazz/setup - but i'm getting the following error:
Is there any way to get more information?
Angelo Sousa
I'm trying to setup email notification - from https://localhost:9443/jazz/setup - but i'm getting the following error:
Can't send command to SMTP host; nested exception is: javax.net.ssl.SSLHandshakeException: com.ibm.jsse2.util.h: PKIX path building failed: java.security.cert.CertPathBuilderException: unable to find valid certification path to requested target
Is there any way to get more information?
Angelo Sousa