Purelymail vs Zoho Mail (2026): $10-a-Year Usage Pricing or Per-User Suite

Purelymail and Zoho Mail answer the "cheap custom-domain email" question in opposite ways. Purelymail charges one flat $10 a year for your whole account — users, custom domains, and storage included, with no hard limits, switching to per-resource billing only if you outgrow it. Zoho Mail has a free plan (one domain, up to 5 users, 5 GB each) and bills its paid plans per user per month, wrapping mail into a larger suite with 24/7 support, migration tools, and mobile apps. If you want the lowest possible bill and are comfortable with a one-person operation's support model, Purelymail wins on price. If you want a conventional supported product — or five users for $0 — Zoho wins.

Disclosure up front: we make SuperMailOS, a multi-domain email host priced per person with unlimited free aliases. In most of the scenarios below we are the most expensive of the three, and the tables say so. The mechanics apply no matter who you pick.

Purelymail vs Zoho Mail at a glance

Purelymail figures are from purelymail.com and its pricing page checked September 7, 2026. Zoho Mail facts are from zoho.com/mail's pricing page checked the same day; Zoho renders paid per-user prices per region in JavaScript, so verify the current number on their site before committing.

How each one counts your usage

Purelymail counts resources, not people. Its "simple pricing" is $10 a year with, in its own words, "no hard limits — not on users, custom domains, storage, or anything else." If you use significantly more than $10 a year in resources, you move to advanced pricing, which bills per resource consumed. Their published example: one address with 3 GB of storage costs $10 a year. Multiple domains and multiple users are explicitly included at no extra charge.

Zoho counts users. The Forever Free plan hosts one domain for up to 5 users at 5 GB each — but from the 6th user onward, all users move to a paid plan, and the free tier excludes IMAP, POP, and Active Sync access. Paid plans bill per user per month and layer on the suite: email recall, migration tools, S/MIME and PGP encryption, a 99.9% uptime guarantee, and 24x7 support. Zoho also lets you mix mail-only and Workplace plans across the same organization on yearly billing.

This is the same pricing-unit decision we broke down in flat rate vs per user email pricing and the Migadu vs Fastmail comparison: Purelymail, like Migadu, is a flat-account host — but metered on total resources rather than daily message quotas, and cheaper at the entry point.

The free-plan math that decides it for tiny teams

Zoho's free tier is the genuine differentiator here, and it is stronger than most "free" email tiers: five real users on your own domain, forever. Purelymail has no free tier, only trial credits.

But the cliff matters. The moment a sixth person joins, Zoho's pricing model flips every user to paid — you cannot keep five free and pay for one, per their own FAQ. A team that grows past five people loses the entire free benefit at once. Purelymail's $10 never scales with headcount; it scales with usage, so a sixth user with light usage costs roughly nothing.

Where we land in this: SuperMailOS Pro is $3 per person per month (annual) for up to 3 domains with unlimited aliases — for a solo operator that is $36 a year against Purelymail's $10, and we are straightforwardly the more expensive option. What the extra buys is the thing neither Purelymail nor Zoho's free tier provides: managed SPF, DKIM, and DMARC on every domain, new-domain warm-up, and deliverability monitoring. Whether that is worth 3.6x Purelymail's price depends entirely on whether mail deliverability is load-bearing for your products. The consolidation pattern behind that question is in email hosting for multiple domains.

What Purelymail's own drawbacks page tells you

Purelymail is unusually candid, and their published drawbacks are worth quoting directly rather than paraphrasing:

• "Occasionally, obscure email servers will block emails sent through us."
• "We don't have a 24/7 support staff... you may not hear back from us immediately."
• "Our UI isn't always the most intuitive."
• You cannot use Purelymail to warm up a domain, send marketing email, or run a mailing list.

That last list is the practical boundary. Purelymail positions itself as infrastructure for personal and transactional mail; they explicitly direct marketing senders to dedicated platforms. Zoho's equivalent boundary is softer — marketing senders are pushed toward their separate ZeptoMail transactional product, but the mail product itself is a full commercial suite with an admin console, an admin mobile app, and encryption options.

On deliverability specifically: every domain needs its own MX, SPF, DKIM, and DMARC records regardless of host. The primer is in our SPF, DKIM and DMARC explainer, and if you are adding a fresh domain, the timeline expectations are in how to warm up an email domain — a task Purelymail prohibits on their service anyway.

Which one fits which operator

Pick Purelymail if you are one person (or a couple) running several low-volume domains, comfortable setting up DNS records yourself, and happy to trade polish and support responsiveness for a $10-a-year bill. It is the closest thing to running your own mail server without running your own mail server.

Pick Zoho Mail if you want a conventional vendor: a free tier for up to five users on one domain, a paid upgrade path with real support hours, migration tools, and suite features like recall and encryption. The trade is per-user billing once you grow, and a mail product that assumes one organization rather than a portfolio of them.

A third shape exists, and it is the one we build: SuperMailOS bills per person but includes every domain you own on aliases — up to 3 on Pro, unlimited on Business at $5 per person monthly (annual) — with deliverability handled for you. Alias mechanics versus plain forwarding are compared in catch-all vs email aliases, and the per-mailbox cost stack behind the multi-domain problem is broken down in business email hosting cost.

Frequently asked questions

Is Zoho Mail really free?

Yes, within limits: one domain, up to 5 users, 5 GB per user, webmail and mobile apps included — but no IMAP, POP, or Active Sync, and it is offered only in select data centers. From the 6th user, all users move to a paid plan.

Is Purelymail reliable?

Their infrastructure runs on AWS and they describe their architecture as robust, but their own drawbacks page notes occasional blocking by obscure email servers and the absence of 24/7 support. For mail that must never bounce — password resets, invoices — test the recipients you care about during the trial.

Can I send marketing email from either?

Not from Purelymail — their terms prohibit unsolicited, marketing, and mailing-list senders outright. Zoho directs bulk and transactional sending to its separate ZeptoMail product rather than mailbox plans.

Which is cheaper for six users?

Zoho: all six users become billed users the moment the sixth joins, so the free tier stops applying. Purelymail: still $10 a year if aggregate usage stays within their soft limits. SuperMailOS: six people on Pro is $216 a year — the priciest, with managed deliverability and unlimited aliases as the difference.

---

Prices and plan terms checked September 7, 2026 on purelymail.com, zoho.com/mail, and supermailos.com. Zoho's paid per-user prices render per region and are not reproduced here — verify on their pricing page. Vendor prices change; confirm before you buy.