Blocking an individual email address
Philip Hallstrom
freebsd at philip.pjkh.com
Wed Feb 15 08:27:25 PST 2006
> I am running a FreeBSD 5.4p10 machine at my office. It functions as our
> firewall and mailserver. I am running Mailscanner, which invokes
> sendmail when necessary to process mail. Sendmail is not started by
> default....Mailscanner invokes individual instances of it when it needs
> to.
>
> Here is my problem. I have an employee at my office that is sending
> work email to her home email address. I need to find a way to block her
> email address, whether To, From, Cc, Bcc, or whatever, from passing
> through my mailserver. I have already added a line to /etc/mail/access
> (in the format email at address.com REJECT), and have run makemap hash
> /etc/mail/access.db < /etc/mail/access. I tested this with my personal
> email address (external to my network), and it had the effect of
> blocking any email orginating from my personal email to any address at
> my work, however it does not prevent me from sending emails to this
> address from a work address, which is the whole point.
I doubt we know the whole story, but even if you do find a way to make
this work what stops her from...
- emailing her work to her gmail/hotmail/yahoo account?
- copying her email and putting it on a thumb drive?
- printing it out and taking it home?
If you are trying to stop her from taking "work material" home then you've
got a much bigger problem.
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