[exim] skip reverse DNS lookup if smtp-authenticated

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Author: Konstantin Kletschke
Date:  
To: exim-users
Subject: [exim] skip reverse DNS lookup if smtp-authenticated
Hi Folks!

I am stuck with pimping my exim ACLs.

exim is denying in "acl_check_connect:" connections whose reverse dns
lookup fails:

deny message = Warning - Reverse DNS lookup failed for host $sender_host_address.
     !verify = reverse_host_lookup
     !hosts = xxx.xxx.xxx.xxx


The !hosts is an exception for my friend whose reverse dns lookup will
always fail but he has an fixed ip address.

My customers log in vie smtp-auth and deliver their mails to this exim
as a smarthost. The ussue is, with t-online this check always fails (I
encourage these to use their t-online smarthost), and recently
osnanet.de is not able to let it reverse dns check their dial in
customers correct. What I want to achieve is, that for my customers,
who always do smtp-auth, this check is skipped.

Who can apply such an exception with exim ACLs?

Kind Regards, Konsti