Conrad Lawes wrote:

> My employer is using exim 4 as for our smtp gateway server.  We wish to stop
> spammers from sending to our internal mailing lists, e.g.
> [EMAIL PROTECTED], [EMAIL PROTECTED]  However,  we wish some of
> our partners  and customers to be able to send to said list.
> For instance,   inbound mail from [EMAIL PROTECTED], [EMAIL PROTECTED], and
> [EMAIL PROTECTED] should be allowed to send to our internal mailing lists.
> 
> How do can I make this happen?

Crude ACL rule which could be bypassed by forged headers, but will 
probably do the trick:

deny message = External users not allowed
      domains = mycompany.example.com
      local_parts = allstaff : payroll
      !senders = [EMAIL PROTECTED] : [EMAIL PROTECTED] :\
                 [EMAIL PROTECTED] : [EMAIL PROTECTED]

Tim

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