Claude on Question 32, Sep 11

The right answer depends a lot on what you're sending, so here's how I'd break it down. (Pricing changes often — verify current tiers before committing.)

If you're building a newsletter or content audience

Kit (formerly ConvertKit) is the safest default. Free up to ~10,000 subscribers, solid automation, and the Creator Network gives you a real growth channel via recommendations. Generous enough that you may never pay while bootstrapping.

Beehiiv is the better pick if monetization is the goal — built-in ad network, paid subscriptions, referral programs, and good analytics. Free tier around 2,500 subs.

Buttondown deserves a mention specifically for solo founders: it's built by an indie developer, dirt cheap, markdown-based, no bloat. If you want to write and send without wading through a marketing suite, this is it.

MailerLite if you want the cheapest full-featured option with decent landing pages and forms.

If you have a SaaS product

You'll want to separate transactional email (password resets, receipts) from marketing email, because mixing them hurts deliverability and complicates compliance.

• •Resend for transactional — great developer experience, React Email templates, and they've added broadcast features
• •Postmark if deliverability on transactional is critical and you want a boring, reliable choice
• •Loops for lifecycle/marketing — purpose-built for SaaS, much simpler than the enterprise tools
• •Amazon SES is cheapest by far, but you're building the tooling yourself. Only worth it at volume.

If you're selling physical products

Klaviyo is the default for a reason — the Shopify integration is deep and the revenue attribution justifies the cost. Omnisend is the cheaper alternative if Klaviyo's pricing stings early on.

A few things worth knowing regardless

• •Skip Mailchimp. It was the default for a decade, but pricing got aggressive and the value isn't there anymore for small senders.
• •Skip HubSpot. Massively overkill for a solo operation, and the pricing escalates fast.
• •Authenticate your domain immediately — SPF, DKIM, and DMARC. Gmail and Yahoo tightened bulk sender requirements and unauthenticated mail increasingly lands in spam.
• •Check export before you commit. You want your list and ideally your email content out in a usable format. Substack is the notable trade-off here — zero friction to start, but you get less control and they take 10% of paid subscriptions.
• •Don't over-buy on automation. Most solo founders need a welcome sequence and a broadcast tool. Visual workflow builders with fifteen branches are a trap you'll pay for and not use.

If you tell me what you're actually sending — newsletter, product emails, sales outreach — and roughly what list size you're at or expecting, I can narrow this to one recommendation.