Service licence
Commercial permission to query our nameservers, plus support and a guarantee we will not rate-limit you by accident.
Nothing changes on your side
Your mail servers keep querying bl.fmb.la, fresh.fmb.la and
lookup.dkimwl.org exactly as they do today. There is no key to paste into a
config, no new zone name, and no maintenance window. You register the IP addresses your
resolvers query from, and we recognise them.
Free and licensed
| Free | Licensed | |
|---|---|---|
| Data | All public zones | The same data |
| Configuration | bl.fmb.la | bl.fmb.la — identical |
| Fair usage | 100,000 queries a day | By agreement |
| Rate limiting | Fair-use limits apply | Your registered resolvers are exempt |
| Commercial use | Not licensed | Licensed |
| If something breaks | You find out when mail does | We alert you first |
| Delisting | Free | Free — identical, never faster |
What support means here
- Listing alerts for space you own. Prove ownership of a netblock, ASN or domain, and we tell you when anything in it gets listed — before your customers do.
- Rate-limit alerts. If one of your resolvers starts tripping limits, we can see it and you cannot. We tell you.
- A named contact and a real escalation path, answered on business days.
- Advance notice of any change to return codes or feed contents.
What it does not mean: 24/7 cover, or any influence whatsoever over a listing. See the listing policy.
Not yet open
Sign-up is not wired up yet — see DESIGN.md, build step 8. Pricing is still an open question.