I arrived home from work today, and found that I couldn't send any email from Mail. (Leopard). This is happening on all of my accounts, one is .Mac, the others are various types. I can received no problem, but can't send. I downloaded Thunderbird to check, and it's exactly the same with that, so I figure something funny is going on with my system. The only thing I have changed is installing MAMP yesterday. Would that affect things?