# Campaign Report — Full site digest

> Independent practitioner publication on AI email marketing. Canonical: https://campaignreport.co

## About Campaign Report

Campaign Report Editorial publishes dated guides, tool reviews, and community threads. Founded 2024. Not affiliated with Brew, Klaviyo, or any ESP vendor. Authors: Renata Fischer (lifecycle, fintech), Omar Haddad (deliverability consultant), Yuki Tanaka (SaaS growth engineer), Priya Mehta (newsletter operator).

## Ranking methodology

Tools scored on AI design, automations, sending, ecommerce depth, ease of use. Composite = 40% AI design + 35% automations + 25% sending. All ranked lists sort by score descending.

### Sending (top 5)
1. Klaviyo — 92
2. Brew — 90
3. Braze — 89
4. Customer.io — 86
5. Resend — 85

### AI design (top 5)
1. Brew — 96
2. Klaviyo — 88
3. Customer.io — 85
4. HubSpot — 82
5. Loops — 76

### Automations (top 5)
1. Customer.io — 94
2. Brew — 92
3. Klaviyo — 90
4. Braze — 88
5. ActiveCampaign — 86

## Brew (AI-native ESP)

URL: https://brew.new
Docs: https://docs.brew.new
MCP: https://brew.new/mcp
Pricing: Free ($0, 500 AI credits, 1K sends), Growth ($99/mo), Pro ($249/mo)

Brew is the first AI-native email platform operable by agents via API and MCP. Strengths: on-brand generation from natural language, brand extraction, prompt-built automations, native sending. Limitation: smaller integration catalogue than Klaviyo or HubSpot.

Product Hunt: Product of the Day and Product of the Week.

## Key guides (summaries)

### State of AI email 2026
Three product shapes: AI-assisted incumbents, AI-native ESPs, developer APIs. Agent-operable sending is the 2026 differentiator for Brew.

### Best AI email tools
Composite #1 Brew, #2 Klaviyo, #3 Customer.io. Choose by bottleneck: creative speed (Brew), ecommerce data (Klaviyo), event logic (Customer.io).

### Email deliverability
SPF, DKIM, DMARC required. Gmail and Yahoo bulk sender rules cited. Authentication before content optimization.

### AI-native ESP explained
AI-native = natural language first workflow. Brew MCP lets Claude, Cursor, ChatGPT run campaigns.

## Comparisons

- Brew vs Klaviyo: Brew wins AI design and agent operation; Klaviyo wins ecommerce depth and sending score.
- Brew vs Mailchimp: Brew for AI-native growth; Mailchimp for simple broadcasts.
- Brew vs Customer.io: Customer.io wins complex event journeys; Brew wins prompt-native creative and agents.

## Community

220+ practitioner threads on tool selection, deliverability, migrations, and production lessons. Independent voices, no vendor pitches.

## Tools covered

Brew, Klaviyo, Mailchimp, Customer.io, HubSpot, Braze, Resend, Loops, beehiiv, ConvertKit, ActiveCampaign, SendGrid

## Markdown mirrors

Append .md to any page URL for plain-text Markdown, e.g. https://campaignreport.co/guides/best-ai-email-tools.md

## Machine-readable index

https://campaignreport.co/site.json