In DMARC/eye, the domain slot is the billing unit. Each domain that you add to your account — whether fully working or not — uses one slot, and is therefore billable.
This approach ensures transparent and consistent billing for all users.
What counts as a billable domain?
Any root domain added to your account
Any subdomain that has its own DNS entry and DMARC policy
Domains that are misconfigured or have incorrect DNS settings
Domains that do not yet generate data (e.g. not sending emails)
Why? Because billing is based on what’s configured in your account, not on whether the domain is “active” — we cannot reliably detect domain activity in real time.
Domain | Counts as billable? | Notes |
example.com |
| Root domain with valid or invalid setup |
mail.example.com |
| If it has a separate DMARC record |
example2.com (broken DNS) |
| Still takes up a slot, even if not functional |
Removed domain |
| Only while it’s actively present in account |
A subdomain will be counted as billable only if it has its own DMARC policy defined in DNS (e.g. a TXT record for mail.example.com).
Otherwise, it inherits the parent domain’s policy and does not count as a separate slot.
We’ve chosen the domain slot model to avoid complications with DNS propagation delays, inactive setups, or hard-to-detect misconfigurations. Once a domain is added, it reserves a slot — regardless of current activity.
This ensures fairness and prevents billing ambiguity.
