I'd like to send a different "smtp_helo_name" depending on if the outgoing connection is IPv6 or IPv4. Is this possible in Postfix?
I just want my forward dns/reverse dns/helo to all match, but I have
less control over my RDNS than I need in order to do this and so I'm
wondering if I can get a quick fix from Postfix.
FWIW, in Exim I would do this by adding something like this to my
smtp transport:
helo_data = ${if isip4{$sending_ip_address}{my.ipv4.helo}{my.ipv6.helo}}
--
Mike Cardwell https://grepular.com https://emailprivacytester.com
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