block message on IP

[Bart J. Smit]

Thanks Pete,

How do I set up sendmail to only accept mail for a local mailbox from a set
of IP's?

E.g. I have spam at mailscanner.mydomain.com and
nospam at mailscanner.mydomain.com. These mailboxes are only allowed to receive
mail from 61.62.113.114 and 113.165.29.39.

I'm sure it is much more efficient to block messages in sendmail but I find
MS much easier to configure.

Will the block encrypted/block unencrypted rules work as well?

Bart...

----- Original Message -----
From: "Pete" <pete at eatathome.com.au>
To: <MAILSCANNER at JISCMAIL.AC.UK>
Sent: Friday, December 19, 2003 2:20 PM
Subject: Re: block message on IP


> Bart J. Smit wrote:
>
> > I would like to implement a feedback feature where users can send
> > false negatives and positives to a set of mailboxes, say spam and
> > nospam. These would be scanned by sa-learn every hour on a cron job.
> >
> > Of course it is far too easy for a spammer to submit their spam to
> > nospam at mailscanner <mailto:nospam at mailscanner> so I want to restrict
> > the IP addresses that can submit mail to that box to the mail servers
> > where my users are on.
> >
> > The MailScanner.conf doesn't seem to offer an option for blocking
> > messages in a ruleset. The closest I have seen is to block encrypted
> > and unencrypted messages on the same ruleset.
> >
> > Does this indeed block all messages? Is there perhaps an easier way to
> > do this in sendmail?
> >
> > Thanks
> >
> > Bart...
>
> Tis the job of the MTA to accept or not accept mail based on IP or
> address, not mailscanner? Far more efficiant in your case where you will
> probably only want 1 or a small amount of subnets/sender domains to be
> able to send to it?
>
> What mail system your clients using?
>