Last year I set up Apple Mail so I could read and send emails from various gmail and hotmail accounts. It has worked well for over a year but this week I can no longer send emails via Mail. If I go directly to my gmail or hotmail accounts using my web browser (Firefox), I can send the emails from there.
I've rung Slingshot and they don't think there is any problem. Funnily enough, my father who uses telecom as his ISP has been having the same trouble. He lives a few blocks away so I wonder if it's a problem on the local exchange?
I've rebooted my modem and wireless router, but that has made no difference. Internet connections seem fine. I've tried the Connection Doctor in Mail, and that shows me that I can access all accounts, yet I still can't send anything.