Re: [exim] IPv6 bug with reverse_host_lookup

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Author: Evgeniy Berdnikov
Date:  
To: exim-users
Subject: Re: [exim] IPv6 bug with reverse_host_lookup
On Thu, Jun 24, 2021 at 10:40:12AM -0400, Robert Blayzor via Exim-users wrote:
> Recently added the following rule in an SMTP connect ACL:
>
> defer !verify = reverse_host_lookup/defer_ok
>       log_message = PTR invalid for $sender_host_address

>
> and we are seeing IPv6 senders with valid PTR's and matching AAAA's for that
> host hit the rule:
>
> 2021-06-24 14:29:03 H=[2602:ff1c:1:80::50]:60631 temporarily rejected
> connection in "connect" ACL: PTR invalid for 2602:ff1c:1:80::50: host lookup
> failed (2602:ff1c:1:80::50 does not match any IP address for
> mta4.pr.judicialwatch.org)


Pls, post here result of

exim -d-all+dns+acl -bh '[2602:ff1c:1:80::50]:60631'
--
Eugene Berdnikov