The existing code is
Code:
With olOutMail
.Subject = .Subject & strSubject
.To = strAddr
.Send
End With
Add the CC line as follows:
Code:
With olOutMail
.Subject = .Subject & strSubject
.To = strAddr
.CC = "someone@somewhere.com" 'The address of the CC recipient
.Send
End With
It will not need re-signing. It is the project that is signed, not the macros it contains.