> The correct description is: > > When both IPv4 and IPv6 support are enabled, the Postfix SMTP > client, for Postfix versions prior to 2.8, will attempt to > connect via IPv6 before attempting to use IPv4. Starting > with 2.8 protocol preference is controlled via the new > smtp_address_preference parameter.
That's not the case on two independent systems here. Whether IPv4 or
IPv6 is used is completely random. This:
for i in $(seq 1 30); do
echo bar$i | mail -s foo$i some...@example.com
done
has lead to ~10 mails being sent with IPv6 and ~20 mails being sent with
IPv4 in our tests.
-nik
--
<burny> Ein Jabber-Account, sie alle zu finden; ins Dunkel zu treiben
und ewig zu binden; im NaturalNet, wo die Schatten droh'n ;)!
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