Viewing/Retrieving messages from Exchange Srvr

Is there a way to view or retrieve email messages from an exchange server? My boss received a message that an email was blocked due to an invalid certificate. It looked like his client software blocked it and he wanted me to see if I could retreive it from the exchange server. I don't think there is anyway to do that but thought I would ask around.

 

What do you exactly mean? Are you trying to retrieve an email that came from someone else's exchange server or one stored on your own? If you are trying to get an email for your boss' exchange account it's all relative to whether his email account is setup for local or remote store. If it's local store then you're out of luck. If it's remote which is the default setting then you should be able to get it if needed.