A solo ad rides on two reputations, and neither is a badge
Answer A solo ad is judged on the sending domain and on the complaint habit of that mail, not on a platform's terms of service. George Hartley at Nitrosend, in a page updated August 30, 2026, calls those the two reputations affiliate email actually owns. Renting one send means you are borrowing both for an afternoon.
The note that started this: Affiliate email marketing: the two reputations you own, George Hartley, Nitrosend, updated August 30, 2026.
Affiliate arguments drift toward the network. Which program allows email. Which terms mention a disclosure. Those rules matter, and they are not the inbox. A program can bless the link and a mailbox provider can still file the message, because the provider never signed the affiliate agreement. The reader did not sign it either.
Hartley's piece is the note that started this. He says two reputations decide whether the mail lands, and a platform policy is not one of them. He treats the sending domain, with SPF, DKIM, and DMARC published under it, as an identifier you can actually own. He then points at the complaint rules he is reading from the mailbox providers. On his account of Google's sender guidelines, bulk senders are asked to keep the spam rate in Postmaster Tools under 0.30 percent, with 0.10 percent recommended, and merchants are told to watch affiliates and remove the ones who send spam. On his account of Yahoo, the floor is SPF and DKIM both in place, DMARC at p=none or stronger with the from-domain aligned, spam under 0.3 percent, and unsubscribes honored within two days. Those are Hartley's readings of the provider pages, gathered on a Nitrosend article. They are not a new measurement of your seller, and this post is not a second copy of the provider's own guideline URL.
What two reputations decide affiliate email?
George Hartley wrote that two reputations decide whether the mail lands, and that a platform's policy is not one of them.
Put the pair in ordinary words. First, can the domain prove it sent the message. Second, have the people who received recent mail from that domain been hitting spam, or leaving, at a rate the providers treat as a problem. A solo ad buyer does not get to manage either one during the rented hour. You inherit them. If they are already bad, your offer is the next complaint, not the repair.
The platform policy is the third document people hide behind. It can ban a claim, require a disclosure, or allow email as a traffic source. None of that tells a mailbox the list wanted the message. Solo ads for affiliate marketing still have to survive the two reputations after the network has nodded.
Which complaint figures does that page attribute to mailbox rules?
Hartley points to Google's guidelines asking bulk senders to stay under 0.30 percent spam in Postmaster Tools, with 0.10 percent recommended, and to Yahoo's guidance of under 0.3 percent, with unsubscribes honored within two days.
Use the figures as his map of the rules, not as your seller's current rate. You do not know the seller's Postmaster number unless they show it. Many will not, and some cannot, because the view they remember has been changing underneath them. A seller who says they are under a tenth of a percent should be able to say which tool, which domain, and which dates. A sentence with no window is a compliment they paid themselves.
The Yahoo half of his map is the exit again. Two days to honor an unsubscribe is a clock. A solo ad that traps the reader, or a seller who batches removals whenever they get to it, is spending the second reputation on purpose. The first reputation, the domain, goes with it.
What does that mean when you rent one email?
You are renting the seller's domain reputation and the seller's complaint habit for an hour. Ask who monitors both, and do not accept a network's terms of service as either one.
Ask for the domain, the last time SPF, DKIM, and DMARC were checked, and what they do with a complaint. You will not get their entire Postmaster login. You can get a straight answer or a dodge. The dodge is data. Best solo ad vendors sound bored by the question because they have answered it before.
Then pay for one email that fits the list's reason for existing, with a refund if the from-name or the day slips. The two reputations stay with the seller after you leave. Treat them as the asset. The click, if it comes, is what you rented. The badge you hoped a network would lend you was never one of the two.