>
> > I have a problem to solve regarding sendmail Relay blocking. I've been
using
> > the /etc/mail/access file for blocking specific user's mail boxes as
some of
> > our employees tried to act too smart with the relay and we had about 400
> > mails sent out in about 2 hours.
>
> Set up rate limiting on your server - and also mailbox quotas. What did
they
> do? Spam / send chain mail?
>
Rate limiting? Can you explain a bit more / any pointers?
How would mailbox quotas help in blocking the relay so that they are unable
to SEND any mails to ANY OTHER DOMAIN outside our domain.
> > The thing I wanna do is that I want to block people from sending ANY
mails
> > outside our local domain i.e. to the smart host. But at the same time
they
>
> Have a mailhub setup, where ppl's accounts are aliased to accounts on an
inner
> mailserver. Only those who can send out outgoing mail get mapped in the
> mailserver that relays to the outside world.
>
Some more explanation if you don mind? What I;ve got here is Just one
machine for this purpose. Cant put another extra machine just for blocking.
Maybe some time later.... when the user accounts grow large in number.
VaibhaV
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