[exim] Whitelisting for rDNS-check

hi all!

is there a possibility to check a "whitelisting-file"
for
-IP or
-domain or
-$sender_address?
some config (exim.conf) details and thoughts so far:


hostlist friends_with_broken_mx =
lsearch;/etc/exim/friends_with_broken_mx

host_lookup = ! +relay_from_hosts

acl_check_rcpt:
# Deny Hosts without reverse DNS
warn message = Broken Reverse DNS -  no host name
found for IP address $sender_host_address
     hosts = !+relay_from_hosts :
!+friends_with_broken_mx
     !verify = reverse_host_lookup

any help will be welcome.
hope someone can shed some light ;-)



    

    
        
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