Ian Eiloart wrote:
> --On 9 January 2007 11:27:52 +0000 Phill Harvey-Smith
> <phill@???> wrote:
>
>>
>> We are having problems with spam email bounces generated from
>> undeliverable addresses on the servers that we route for, the problem
>> being that protein has no way of knowing if users at the system it
>> forwards for exist, so has to accept all mail for them and attempt
>> delivery, which of course if it fails generates a bounce message,
>> often containing spam. What I would prefferably like to do is just
>> drop these on the floor and generate no bounce back.
>>
>> Does anyone have any idea how I would go about doing this, or have a
>> better sugestion as to what would be a better course of action.
>>
>
> You need a recipient ACL that looks something like this:
>
> accept
> set acl_m_last_rcpt = $local_part
> domains = +local_domains
> # reject if tests below "endpass" fail
> endpass
> message = unknown user
> # here we do a callforward to see if we can deliver to the
> recipient verify = recipient/defer_ok/callout=600s
> --
> Ian Eiloart
> IT Services, University of Sussex
Or alternatively, if it suits the logic of your config more easily (as
here), something like...
# Deny if the address is in a domain for which we are an incoming relay,
# and the recipient can not be verified.
deny domains = +relay_to_domains
!verify = recipient/callout=20s,defer_ok,no_cache
You takes your choice.
Regards
Richard
--
Richard Rogers
IT Development and Innovation Manager
Staffordshire University
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