[exim] Send only via IPv4?

Hi!

I do run exim 4.84.2-2+deb8u5 on debian. I do have setup IPv4 and IPv6
on the host.
But as google wants a reverse DNS point for the IPv6 entry for accepting
mails, I want to send mail to google only via IPv4.

Has anyone a idea on howto, link, guide?

Thank you.


(and yes, I do work on the reverse DNS entry, but as its a root server
in a foreign IPv6 network, it is not easy to get a DNS being responsible
for the IPv6 net)

MfG,
Lars Schimmer
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