Hello Marc Cahn,
We've an article that provides tips and information which can help get your mail moving again.
The issue is that my settings are correct. I know that because they are the sae as the ones on my acbook pro and I receive e-mail there. This weekend for no apparent reason e-mail was sent and received for a short period of time, but since thenit remains non functional.What could be causngit to be blocked from sending or receiving most of the time?
Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action.