What’s Easy (and What Isn’t)
“Vibe coding” is the term for describing what you want to an AI tool like Cursor or Claude Code and letting it write the software for you. It’s genuinely powerful, and it’s raising a real question in small business circles right now: if AI can write software this fast, do we even need to pay for Mailchimp or Aweber anymore?
We dug into this properly. Short version: yes to the plumbing, no to the platform.
The Easy Part: Sending an Email
Newer email infrastructure providers, think Resend, Sequenzy, and Loops, are now built specifically so AI coding tools can wire them up in minutes.
- Add a domain, verify it, grab an API key, and you’re sending
- Tools like Cursor autocomplete the entire integration because these platforms are designed with clean, predictable code
- One recent comparison put it simply: “if you’re vibe coding a project in Lovable or Claude Code, most AI tools will just ask for the key and wire it up”
So if all you want is “send an email when someone signs up,” that part genuinely is close to trivial now.
The Hard Part: Everything Mailchimp Actually Sells You
Here’s the catch. Sending one email is not the same thing as running an email marketing system. The same comparison that praised how easy the API integration is also delivered the honest warning:
“There’s no import wizard because there’s nothing to import into, you’re replacing a marketing platform with infrastructure. The downside: no visual editor, no campaign builder, no landing pages, no forms.”
The parts that are genuinely difficult to vibe-code are the parts that don’t show up in a demo:
- Deliverability reputation — getting into inboxes instead of spam folders, built up over years of sending history, not a weekend project
- Compliance and list hygiene — unsubscribe handling, bounce management, and spam-law compliance across every major mail provider
- A visual editor and campaign builder that someone non-technical on your team can actually use without touching code
- Segmentation, automations and reporting, the actual marketing layer, not just the delivery mechanism
If you’re a solo technical founder, vibe-coding the sending layer and pairing it with a simpler tool for the marketing side is genuinely viable. If anyone non-technical on your team needs to build and send a campaign themselves, you still need an actual platform.
The Alternatives, Compared Properly
We looked at the three tools most commonly mentioned as “vibe-coding friendly” email options, Resend, Loops, and Sequenzy, and lined them up against Mailchimp and AWeber on the things that actually matter: price, what you get for it, and who it’s really built for.
| Mailchimp | AWeber | Resend | Loops | Sequenzy | |
|---|---|---|---|---|---|
| Free plan | 250 contacts, 500 sends/mo, no automation | 500 contacts, ~3,000 sends/mo, drag-and-drop builder included | 3,000 emails/mo (100/day cap), 1,000 marketing contacts | 1,000 contacts, 4,000 sends/mo, Loops branding | 2,500 emails/mo, unlimited contacts |
| Entry paid price | $13/mo (Essentials, 500 contacts) | ~$15/mo (Lite) | $20/mo (Pro, 50,000 emails) | $49/mo (2,500–5,000 contacts) | $19/mo |
| Visual campaign editor | Yes, drag-and-drop | Yes, drag-and-drop | No — API/code only | Yes, Notion-style editor | Yes, plus AI-generated sequences |
| Multi-step automation | Only on Standard ($20/mo+) | Capped at 3 on Lite, more on Plus | No — you build logic yourself in code | Yes, event-triggered lifecycle flows | Yes, plus Stripe/Paddle-triggered automations |
| Built-in AI content generation | Limited | No | No | No | Yes — AI Sequence Builder writes subject lines and copy from a prompt |
| Deliverability handled for you | Yes | Yes | Yes (SPF/DKIM/DMARC configured) | Yes | Yes |
| Non-technical staff can use it | Yes | Yes | No — API-first, built for developers | Yes | Yes |
| Best fit | All-round small business marketing | Simple newsletters + strong human support | Developers who only need to send, not manage campaigns | SaaS product teams wanting one tool for product + marketing email | Founders who want Mailchimp-style features at a fraction of the price |
What This Actually Tells Us
The pattern is clearer once it’s laid out like this:
- Resend is the purest “vibe-coding” story — genuinely built to be wired up by an AI assistant in minutes, but it’s infrastructure, not a marketing platform. No visual editor, no campaign builder, nothing a non-technical team member could use unsupervised.
- Loops and Sequenzy are the interesting middle ground — both are new enough to have been built with AI-assisted development in mind, yet both still ship the visual editor, automation builder, and analytics that make a platform usable by an actual marketer, not just a developer. Sequenzy in particular is priced well below Mailchimp’s Standard tier while including AI-written sequences as standard.
- Mailchimp and AWeber still win on maturity and support — AWeber’s free plan comes with 24/7 human support from day one, something none of the newer, cheaper tools currently offer, and Mailchimp’s ecosystem of integrations is still the deepest of the five.
So Is This Why Xero and Intuit Share Prices Have Been Smashed?
This is the part we found genuinely interesting, because the answer is “partly, but it’s more complicated than a headline suggests.”
Both companies have had a rough 2026:
- Intuit (owner of QuickBooks and Mailchimp) is down more than 50% this year, from an all-time high around $814 to lows near $360
- Xero has fallen from around $200 nine months ago to the $65–70 range, caught up in a broader ASX tech sell-off
Analysts are explicitly linking part of this to AI disruption fears. One market report described the sell-off as driven by “renewed unease over artificial-intelligence valuations,” and another noted investor caution around “AI potentially pressuring traditional software pricing power.”
But here’s the balance worth adding. Xero’s own Chief Product & Technology Officer, Diya Jolly, has directly pushed back on the idea that vibe coders are a real threat to a company like Xero, arguing there’s a genuine gap between what an amateur AI-built tool can do and what an enterprise “financial operating system” actually requires, pointing specifically to a decade of work building accurate bank-feed connections as the real moat, not the code itself.
It’s also worth noting Intuit’s drop is tangled up with other factors too, a 17% workforce reduction announcement and tough tax-season comparisons, not purely an AI story. And both companies are leaning into AI rather than retreating from it: Xero has built its own agentic system (JAX) and added a Claude connector, while Intuit’s QuickBooks and Mailchimp division actually grew revenue in double digits last quarter.
The Real Takeaway
The pattern here is the same one we keep coming back to: AI is excellent at replicating the mechanical, demo-able part of a task, and still genuinely weak at replicating the years of accumulated trust, compliance, and integration work behind it.
That’s true of email marketing platforms, and it’s true of accounting software too. Understanding both sides of that, what AI can now do easily, and what still requires real platform expertise, is exactly the kind of skill that makes you more valuable, not less, as these tools keep improving.
If you want to build genuine, practical skills across the platforms actually running Australian small businesses right now, our Xero Professional Training Course Package and our Email Marketing Communications Training Course both cover exactly this ground, not just which buttons to click, but how these systems actually work under the hood.
Share price figures and analyst commentary reflect publicly reported data as at the time of writing. This article is general commentary, not financial advice.
