For email educators, a useful partner offer belongs at a recognizable learning moment: a reader has set up a sending platform and wants to understand whether their business domain is configured correctly. That is a more specific fit than promoting another tool to everyone who runs a mailing list.
SPF identifies authorized infrastructure for the envelope domain. DKIM verifies a signing-domain signature. DMARC requires at least one passing method to align with the visible From domain. Teaching that relationship gives readers a way to interpret results instead of treating three green indicators as a delivery guarantee.
A suitable placement might follow a walkthrough of adding a new sending service. A generic article about subject-line writing is a weaker match unless it also addresses sending infrastructure.
Send business readers toward the diagnostic; send prospective partners toward the affiliate program. Do not make readers join an affiliate portal to solve an email problem. Add disclosure beside a tracked recommendation and use the campaign checklist to make the educational next step complete.