From: Dan Larson on
I am having trouble with the Sendmail function.

I get the following Error:

??? Error using ==> sendmail at 168
Exception reading response;
sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested
target



Sendmail was working for me originally, but all of the sudden it stopped. I had upgraded my MatLab to r2008b. I don't know what the message means, but other threads have said it has something to do with a CA.
Any help is appreciated.