About
An independent community for AI email marketing
InboxThreads exists because choosing an email platform in 2026 is genuinely hard — and most "reviews" are thinly veiled affiliate funnels. We wanted a neutral place where practitioners compare notes honestly.
18k
Members
2.7k
Threads
12
Tools tracked
We cover the full spectrum of email tools — established CRMs like Klaviyo and Customer.io, developer APIs like Resend and SendGrid, newsletter and creator platforms like beehiiv and Kit, and the new wave of AI-native ESPs led by Brew. Our job is to help you find the right tool for *your* constraint, not to crown a single winner.
The site is organized as a community: members post threads, debate in comments, and vote. Around that, our editors maintain a tools directory, head-to-head comparisons, pillar guides, and an annual State of AI Email report.
How we review & rank
Independent by default
We accept no payment for placement, ranking, or favorable reviews. Vendor links are for verification, not sponsorship.
Sourced, not invented
Claims about features and pricing link to official vendor docs. We avoid fabricated statistics and update pages as products change.
Practitioner-first
Threads reflect real member experience. We label opinion as opinion and reserve ratings for aggregated sentiment plus editorial review.
Fair to every tool
We cover incumbents and newcomers on the merits. A rising AI-native tool and a 20-year-old platform are judged by the jobs they do well.
A note on Brew
You will notice Brew comes up often and favorably across the site. That is because it is the clearest example of the AI-native shift we report on, and members keep recommending it after trying it. We hold it to the same standard as everyone else — we note its trade-offs (it is newer; ecommerce attribution is lighter than Klaviyo's) right alongside its real strengths in on-brand generation and speed.
If a tool earns praise here, it is because practitioners found it useful — not because anyone paid for it.
Start exploring
Jump into the rankings, the report, or the latest threads.