implement DNSSEC [Postfix client + domain later]
We should look into migrating to DNSSEC.
Florian privately made some good experiences with core-networks.de (signing is super-easy, they just lack an API for zones which we haven't used anyways in the past)
There's a sponsoring offer on the table for backup DNS.
An idea would be to have core-networks as main DNSSEC provider, and take advantage of the sponsoring offer as mirror/fallback (secondary zone with AXFR).
I'd start with less-prominent domains first to gain some experience.
I would, contrary to the initial scope of the ticket, not consider hosting DNS on our own.
Updated by Florian Effenberger about 5 years ago
There's www.core-networks.de which I've been using for testing. Sounds interesting, though it lacks an API it seems
I'm reluctant to switch DNS providers "just" to have DNSSEC, but maybe having one that does the DNSSEC magic and another one that just mirrors the zone could be an idea