RE : how'd they get access to the recipient list

"well, I guess they would need to call the police to get gmail to give them access to the gmail account, oh wait these people are the goverment. Hi gmail it support it's gordon brown here, some wee tw@t has sent out some silly emails, can you give us the recipeint list?"

Or perhaps they looked at the To: and Cc: fields in the email header, dumbass.

I agree with the anonymous coward, SMTP clues required.