I'm using Mac Mail 4.5 on Mac OS X 10.6.7. Every 3 or 4th email I send gets hung up. The send icon just keeps cycling. Eventually, sometimes, an hour later, a message pops up to say my outgoing server SMPT timed out. it doesn't make sense: these messages can be as short as two words with no attachments, and yet they don't work. Then the next one works, no problem. I've never had email do this: it's very frustrating. I can send the same message on my web mail and it goes out immediately. Any help to resolve this would be appreciated.