StackEvidence Compare Software
Policy-Sensitive Software Research

Best email marketing software for affiliate marketers? Policy fit matters before features.

An ESP can have excellent automation and still be the wrong platform if your newsletter model violates its account rules. StackEvidence asked GetResponse, ActiveCampaign, Kit, and MailerLite how they treat independent software comparisons, disclosed affiliate links, competitor recommendations, and evidence-based criticism.

Compare the policy fit Compare the products
Platforms evaluated 4
Evidence type Policy + human guidance + hands-on
Primary use case Affiliate-supported editorial publishing
Latest material update October 6, 2026
First define the business model

“Affiliate marketing” can describe very different email programs.

StackEvidence is evaluating an editorial publication model — not solo ads, coupon blasts, third-party launch promotions, or an email list whose only purpose is generating commissions.

Original editorial content Research, education, comparisons, limitations, implementation guidance, and software-selection analysis provide the primary value.
Contextual affiliate links Affiliate links may appear when relevant, but the email should remain useful even if every affiliate link were removed.
Independent conclusions The publication must remain free to criticize a vendor, describe disadvantages, and recommend a competing product when evidence supports it.
Clear disclosure Readers should understand when compensation may result from a link without disclosure language overwhelming the editorial content.
Permission-based subscribers Subscribers should knowingly request the publication or resource. Affiliate-content permission does not replace consent requirements.
No commission-first list This research does not assume permission for accounts whose primary purpose is sending unrelated third-party offers for commissions.
Policy comparison

The current fit for affiliate-supported editorial publishing.

These are operational suitability findings for using the platform as an email service provider. They are separate from each company's affiliate-program agreement.

Platform Current StackEvidence finding Competitor comparisons Affiliate links Production position
ActiveCampaign
Strong written fit 		Human Customer Experience guidance said the exact StackEvidence model — original editorial analysis with secondary contextual affiliate links — is acceptable. Written guidance explicitly permitted multi-vendor comparisons, dedicated A-vs-B and Best Software emails, criticism, and recommending competitors. Contextually relevant affiliate links were permitted in newsletters, broadcasts, automations, and behavior-triggered marketing messages when substantive editorial value remains primary. Strong policy fit for the described editorial model. Product, pricing, and operational fit still need separate evaluation.
Kit
Sample reviewed 		Kit reviewed the representative StackEvidence sample on October 6 and said it appeared primarily focused on independent editorial research and software comparison. The reviewed sample included the actual StackEvidence comparison model. Kit allowed continued sending subject to its current Acceptable Use Policy. Kit said responsibly used, properly disclosed affiliate links are permitted, but accounts may not be primarily or entirely affiliate promotion. Strong production candidate for StackEvidence. Production sender/domain configuration remains a separate operational step.
GetResponse
Direct conflict 		GetResponse Compliance stated that content advertising competing services directly or indirectly is prohibited. GetResponse specifically said reviews and comparisons involving brands other than GetResponse would not be compliant. The relevant issue for StackEvidence is not simply whether an affiliate URL can appear. The competitor-comparison model itself conflicts with the guidance received. Not suitable as StackEvidence's production ESP for the exact multi-vendor editorial model.
MailerLite
Conflicting evidence 		Human support explicitly approved the described independent editorial model, including contextual affiliate links and repeated software comparisons. Written support said multi-vendor broadcasts, automations, dedicated comparisons, criticism, and competitor recommendations were permitted. Written support allowed relevant disclosed affiliate links where original editorial value remained primary. Not cleared for StackEvidence production because the test account was later terminated. The notice cited email content and/or subscriber-consent methods without identifying the exact cause.
Platform-by-platform

What the written guidance means in practice.

Policy fit is only one part of choosing an ESP, but for an affiliate-supported publication it can be a hard disqualifier.

A

ActiveCampaign

Strongest explicit written operational approval
What support approved

ActiveCampaign said StackEvidence's original editorial, educational, and software-research model is acceptable when affiliate links remain secondary and contextually relevant.

Comparison freedom

The response explicitly allowed emails comparing ActiveCampaign with competitors, dedicated A-vs-B comparisons, Best Software content, negative findings, and competitor recommendations.

Important boundary

Messages whose main purpose is pushing an affiliate URL, deal blast, solo ad, or similar commission-first promotion fall outside the model that was approved.

Separate affiliate-program issue

This customer-account permission does not resolve the separate ActiveCampaign affiliate Partner Team contract question. Those commercial terms remain a different gate.

K

Kit

Representative StackEvidence sample reviewed
What changed on October 6

Kit reviewed the actual representative StackEvidence sample rather than answering only a hypothetical policy question.

Review result

Kit said the sample appeared primarily focused on independent editorial research and software comparison, with affiliate links integrated into broader content and clearly disclosed.

Important boundary

Kit does not allow accounts that are entirely or primarily affiliate-based or primarily used to promote and sell other tools and software.

StackEvidence position

Kit is currently the strongest production candidate for StackEvidence because the representative content itself was reviewed and accepted for continued sending.

G

GetResponse

Product capability does not overcome policy conflict
Direct answer

GetResponse Compliance told StackEvidence that content advertising competing services directly or indirectly is prohibited.

Comparison impact

The response specifically stated that reviews and comparisons involving brands other than GetResponse would not be compliant.

Why this matters

StackEvidence exists to compare multiple vendors and recommend alternatives where evidence supports them. Removing that freedom would undermine the publication's editorial model.

Decision

GetResponse remains a valid product to research and review, but it should not be StackEvidence's production email platform under the guidance currently on record.

M

MailerLite

Written approval followed by account termination
Written guidance

MailerLite support explicitly said the described model was permitted independent editorial content and affiliate-supported publishing when links remained relevant and disclosed.

What support also permitted

The response allowed repeated comparisons, multi-vendor emails, dedicated A-vs-B content, criticism, competitor recommendations, and links in campaigns, automations, and hosted assets.

What happened later

On October 6, the StackEvidence test account was terminated. The notice said the issue concerned email content and/or the method of obtaining subscriber consent.

What we do not know

The termination notice did not identify which specific email, subscriber, consent action, or content element caused the decision. StackEvidence therefore does not claim that the editorial model itself was definitively the cause.

Important distinction: written support permission is useful evidence, but it is not the same as a guarantee that an account will never be reviewed, restricted, or terminated. MailerLite's contradictory evidence is why operational enforcement history belongs in an ESP decision alongside policy text.
Decision framework

How affiliate-supported publishers should choose an ESP.

Do not choose the platform solely because it has an affiliate-friendly help article. Test whether the actual publication model is compatible with the current operational rules.

Can you compare competitors? A review publication needs freedom to compare multiple brands in one article, newsletter, or automated sequence.
Can you criticize the ESP itself? Editorial independence requires the ability to publish limitations, pricing disadvantages, and reasons another vendor may be better.
Are affiliate links secondary? Original content should deliver standalone value rather than existing merely as a wrapper around commission links.
Do subscribers actually expect the content? Email-content permission never substitutes for lawful and platform- compliant subscriber consent.
Is the rule documented? Preserve written policy and human guidance for unusual business models rather than relying only on sales copy or assumptions.
Does enforcement match the guidance? Account history, warnings, suspensions, and unresolved enforcement events can materially change the operational risk.
StackEvidence conclusion

For affiliate-supported editorial publishing, policy compatibility is a feature.

There is no responsible universal winner, but the current evidence creates meaningful separation among these four platforms.

Strongest explicit policy fit: ActiveCampaign

ActiveCampaign gave the clearest written permission for the exact multi-vendor editorial model, including comparisons, criticism, competitor recommendations, and contextual affiliate links.

Strongest current StackEvidence production candidate: Kit

Kit reviewed the representative StackEvidence content itself and said the publication could continue sending as long as original editorial value remains primary and account activity stays within its Acceptable Use Policy.

Not compatible with the exact model: GetResponse

The written Compliance response conflicts directly with StackEvidence's need to compare competing software products in email.

Not production-cleared: MailerLite

The earlier support approval remains useful evidence, but the later unexplained account termination creates too much unresolved operational risk for StackEvidence to treat it as cleared.

For StackEvidence itself: Kit remains the preferred production direction today because its team reviewed the representative publication sample and allowed continued sending. ActiveCampaign remains a strong alternative on policy grounds, but product fit, cost, and remaining operational considerations still belong in the decision.
Compare the four products GetResponse vs ActiveCampaign
Evidence standard

Why this page uses more than public policy pages.

StackEvidence asked the vendors about the actual publication model, preserved human replies, tested real accounts where practical, and kept contradictory outcomes visible instead of smoothing them into a generic “affiliate-friendly” label.

ActiveCampaign Human Customer Experience guidance explicitly addressing original editorial content, comparisons, competitor links, criticism, affiliate links, automations, and hosted assets.
Kit Verification-team correspondence plus October 6 Product Specialist review of the representative StackEvidence email sample.
GetResponse Written Compliance response stating that reviews and comparisons involving other brands would not be compliant for the described model.
MailerLite Human support approval of the editorial model preserved alongside the later October 6 account-termination notice.
Limit of this research Policies and enforcement practices can change. Written responses describe the specific model and time at which they were given, not an irrevocable future guarantee.
Commercial transparency

Affiliate commission does not determine the recommendation.

This page evaluates whether the products can support an independent affiliate-funded publication without requiring the publisher to give up honest criticism or multi-vendor recommendations.

Current monetization rule: StackEvidence will not add a vendor affiliate link merely because the affiliate program is available. The program terms must preserve editorial independence, the relationship must actually be approved, and the link must pass disclosure, destination, mobile, and tracking QA.
Email Marketing Research Hub Affiliate Disclosure