I´ve received the latest InterPartners newsletter, promoting the CAP review, Google +1, etc. I have replied by e-mail, asking a question but it bounced, as follows:
This is the mail delivery agent at messagelabs.com.
I was not able to deliver your message to the following addresses.
<[email protected]>:
217.168.171.103 does not like recipient.
Remote host said: 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown in virtual alias table