Following is the error message:

Task 'pop.gmail.com -  Sending' reported error (0x8000CCC78) : 'Unable to send the message. Please verify the e-mail address in your account properties. The server responded: 530 5.7.0 Must issue a STARTTLS command first. bo7sm26478215igb2' 

Note My outgoing Server requires authentication is checked and the g-mail settings are correct for incoming and outgoing mail. I only have trouble sending and not receiving.

I get the same error message on original composiitions as well as "reply to" messages. The laptop was recently upgraded for Windows Vista to Windows 7.