[Exim] Bcc: not stripped

Hi,

I'm using Exim 3.30, and have noticed that e-mail addresses
specified in Bcc: are not hidden. I have sent several test
e-mails to destinations at different mail servers, and in all the
messages I could see the Bcc: with all the original recepients.

Is there a specific switch which adjusts Bcc: functionality?

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Best Regards
Vladimir Ivaschenko
Certified Linux Engineer (RHCE)