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Exim: version 4.94.2 #2 built 07-May-2021 10:34:38 cPanel: 96.0 (build 11) OS: Linux host.redacted.ofc 3.10.0-1160.25.1.el7.x86_64 #1 SMP Wed Apr 28 2

Exim IPv6 bug with reverse_host_lookup

Exim: version 4.94.2 #2 built 07-May-2021 10:34:38
cPanel: 96.0 (build 11)
OS: Linux host.redacted.ofc 3.10.0-1160.25.1.el7.x86_64 #1 SMP Wed Apr 28 21:49:45 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Inside the Exim advanced editor, add the following to "custom_begin_connect_post":

Code:
defer !verify = reverse_host_lookup/defer_ok log_message = PTR invalid for $sender_host_address
We are seeing IPv6 senders with valid PTR's and matching AAAA's for that host hit the rule...

Exim IPv6 bug with reverse_host_lookup
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