Personally I don't like fake "senderbcc" address for every user. This my
catch a lots of spam in "sent" folders.
you are confusing sender bcc with virtual aliases.
What about spam with a faked FROM address which seems to be from a local
user? I think the point is that this strategy can cause a copy of the
spam to end up being added as a sent item. The extra header field was
being added presumably to identify real sent mail from faked spam and
hence only add real sent messages to the sent folder?
Ed W
