How do I make MiaB use my new IPv6 address?

I have Mail-in-a-Box running on a Linode VPS. Got assigned an IPv6 /64 subnet so I can meet Spamhaus’s requirements to get unblocked, and followed https://www.linode.com/docs/networking/linode-network/linux-static-ip-configuration/#ubuntu-18-04 to make the system use one of the new addresses. However, Mail-in-a-Box is still using the old IPv6 address, and even shows it when running mailinabox, while ip address shows both.

There are red status checks, but they are all related to DNS for domains for which I’m using external DNS. There are no red status checks for the main domain and the box’s subdomain.

I’m not really sure whether this is a Linode problem, a Mail-in-a-Box problem, or if I just screwed up somewhere. Regardless, any help would be appreciated.

Did you remove the old IPv6 from netplan?

Did you re-run sudo mailinabox for MiaB to pick up the new IP address?

Did you remove the old IPv6 from netplan?

The netplan config which I applied only contains the new one, and there are no other netplan config files on the system.

Did you re-run sudo mailinabox for MiaB to pick up the new IP address?

Yes, but the output after the first few config screens still shows the old address in “Public IPv6 Address:”.

For future reference, the fix was to remove the old IP address manually.

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