how to block all email sent to outside email account?

[Martin Hepworth]

2008/11/14 Jorge Luis Costinha <jlcostinha at halla.pt>:
> Hello all,
>
>
>               i wish to prevent outgoing email to a specific outside world
> account.  I try to use the blacklist feature on MailScanner, but only works
> from incoming email  to be delivery on internal accounts... i also try to
> catch outgoing emails with procmail, without success...
>
> here's what i try to do:
>
> on /etc/procmailrc added:
>
> :0
> * To()emailaccount at domain\.com
> \dev\nul
>
> again this only works with incoming email... not outgoing email.. just like
> mailscanner blacklists...
>
> any ideia on how can i do this? perhaps on MTA level, how?
>
> my system specs:
>
> CentOS 5.2
> MailScanner 4.65.3
> Sendmail 8.14.1
>
>
> Thanks in Advance.
>
> Jorge
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HI

if you're scanning outgoing email with MailScanner shouldn't be a
problem. Also means you can put in the annoying corporate footer, use
watermarking for anti-joe jobbing etc.


-- 
Martin Hepworth
Oxford, UK