On 10/10/2013 01:37 AM, Wietse Venema wrote:
James Cloos:
Unfortunately it is not uncommon with v6.
I've had to whitelist a number of sites over the last year where the
outoing mta added a v6 address w/o a ptr.
Mostly it appeared to be due to new v6 routes and autoconfig surprising
the mta admins.
I wonder how this could happen, as Postfix still installs with IPv6
turned off. Unless, of course, distributors have removed my temporary
safety net that disables IPv6 for the time being.
Not sure if that's what you mean but a quick check of main.cf in the
postfix 2.10.2 RPM for F19 and postfix 2.6.6 RPM for CentOS 6.4 shows:
# Enable IPv4, and IPv6 if supported
inet_protocols = all
Regards,
Patrick