Stale data and authority zone entries

[Jasper Siepkes]

Hi all!

I've been browsing the documentation but can't find a definitive answer. Are authority zones (i.e. zone transfers via the `auth-zone` directive) also affected by the `serve-expired` directive? So is an expired zone subject to the serving stale data directives as outlined in https://unbound.docs.nlnetlabs.nl/en/latest/topics/serve-stale.html ? 

The documentation for the `auth-zone` directive says: "When a zone is expired, queries are SERVFAIL, and any new serial number is accepted from the primary (even if older), and if fallback is enabled, the fallback activates to fetch from the upstream instead of the SERVFAIL.". It doesn't mention the `serve-expired` option being taken in to account.

Kind regards,

Jasper