Do you want to send a private mail from within a public mail? Something like below?
bccthis is an addon through which you could append a private note for a subset of recipients in a group e-mail without having to compose a second message. It is available for MS-Outlook, Blackberry and Gmail (firefox addon).
If the receiver also has bccthis installed, then there’s an option of consolidation of the messages. Otherwise the private message will be sent as a separate email to the receiver.
Try it out!
Read more...