Hello Gary,
> from the correct IP address.
> http://www.sant-media.co.uk/2010/03/how-to-configure-exim-to-receive-email-for-domain-only-from-specific-ip-addresses/
>
> But these work with a list of IP addresses and a list of domains (or users) so
> doesn't give a 1-to-1 check.
>
> Can anyone suggest a solution where I can provide a list say of:
>
> user1 IP 1
> user2 IP 2
Given userN is the recipient of your message…
In on of your rcpt acl put something like
require hosts = ${lookup{$local_part@$domain}lsearch{allowed_hosts}}
Not tested.
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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