Out of Office Auto-replies

This is just a friendly request to all of you who use Out Of Office
Auto-replies:
would you please set up a filter for discussion group mails so that you
block replies. For example, you can create a rule that checks for the
string  "VBCOM" in the subject line and ignores those.
Anyway, auto-replying to external addresses is not really a good idea,
it can create circular mailings and is generally bad for your company's
security,

Thanks,
Alex Bailey.