How to: Enable sending mail with IPv6 addresses

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How to: Enable sending mail with IPv6 addresses

The dns_ip6_lookup feature is disabled by default as of InterWorx Version 5.1.7.  This means
mail will not try to deliver via IPv6, unless the following is completed:

From the command line, /var/qmail/control/dns_ip6_lookup and /var/qmail/control/senderip6 must be created.

To create  /var/qmail/control/dns_ip_lookup, run the following command:

echo 1 > /var/qmail/control/dns_ip6_lookup

If the file is missing or contains anything other than “1”, the feature will be disabled.

If dns_ip6_lookup is enabled, then the senderip control file can be used for binding a local ip6 address based on the mail sending domain name, much like the senderip file works for ip4 addresses.

/var/qmail/control/senderip6 must be configured similarly to /var/qmail/control/senderip

Example /var/qmail/control/senderip entry:

iwtest.net:10.1.0.1

Example /var/qmail/control/senderip6 entry:

iwtest.net:2001:db8:0:1:1:1:1:1

Following these steps will allow mail to be sent via IPv6.

Apr 12, 2016, 1:22 pmBy: InterWorx
How to: Enable sending mail with IPv6 addresses
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