How billing works for each deal type
Billing is always per impression. What each side pays and earns on Direct-Sold, network and exchange demand, with worked examples.
Updated 2026-11-02
Money moves per delivered impression, never per email sent and never per click. If nobody opens the email, nothing is charged.
If your account is billed by your ad network, you have no wallet here. The impressions are still counted, and your ad network bills you on its own terms.
The three deal types
| Deal type | What it is | Who is charged | What the publisher gets |
|---|---|---|---|
| Direct-Sold | A sponsor the publisher sold itself. | The publisher's wallet pays a flat serving fee. | 100% of what it negotiated with the sponsor, settled between them. |
| Network demand | An advertiser on MailAdx. Shown as INTERNAL_DSP in your wallet. | The advertiser's wallet pays the line item's CPM. | The CPM less a buy-side fee and a sell-side share. |
| OpenRTB | A buyer on an outside exchange. | No wallet here. The exchange settles with its own buyer. | The winning bid less an exchange fee and a sell-side share. |
CPM means the price per 1,000 impressions.
Default rates
These are the defaults. Rates are set per account and per exchange, so yours may differ.
| Fee | Default |
|---|---|
| Direct-Sold serving fee | $0.40 per 1,000 impressions |
| Buy-side fee on network demand | 15% of the CPM |
| Sell-side share on network demand | 15% of what is left |
| Exchange fee on OpenRTB | 10% of the winning bid |
| Sell-side share on OpenRTB | 10% of what is left |
| Serving fee on a DSP that pays you directly | $0.40 per 1,000 impressions |
For publishers
Your own rates are under Account, in Platform Fee Schedule. They are read-only. Write to support@mailadx.com to discuss them.
For advertisers
Your fee is under Account, as Buy-side platform fee. It comes out of your CPM. It is not added on top of what you pay.
Worked examples
These use the default rates.
Direct-Sold. A publisher sells a sponsor 100,000 impressions at a $10 CPM. The sponsor pays the publisher $1,000 directly. The publisher's wallet pays $40 in serving fees.
Network demand at a $10 CPM, per 1,000 impressions. The advertiser's wallet pays $10.00. The buy-side fee takes $1.50, leaving $8.50. The sell-side share takes $1.275, and the publisher is credited $7.225.
OpenRTB at a $10 winning bid, per 1,000 impressions. The exchange fee takes $1.00, leaving $9.00. The sell-side share takes $0.90, and the publisher is credited $8.10.
CPC and CPL line items
You are still charged per impression. The Bid Type on a line item changes how it competes for impressions. It does not change how it is billed: you are not charged per click or per lead.
Your real cost per click or per lead is your spend divided by your clicks or leads. It can be higher or lower than the number you entered.
Flat-rate line items
A flat-rate line item is a fixed sponsorship fee on a Direct-Sold deal, agreed between the publisher and the sponsor. The publisher's wallet still pays the serving fee per impression.
What is never charged
- Emails that are sent but not opened.
- Clicks, leads, votes and other responses.
- Traffic filtered as invalid. See refunds and credits.
If something goes wrong
- A charge does not match what you expected. Compare it with your wallet transactions. Then write to support@mailadx.com with the date range and the line item or ad unit.
Related
Still stuck? support@mailadx.com