Is this email cost calculator free?
Yes. The calculator is free, does not require a login, and estimates costs from the domain count, seats per domain, and extra forwarding providers you enter.
Flat-price arithmetic
Price the inbox sprawl.
Estimate what per-seat workspaces and scattered forwarding services cost once every domain has its own mail identity.
Folio's free email cost calculator estimates the annual or monthly cost of running business email across many domains. It compares a Workspace-style per-seat model, a scattered forwarding-provider stack, and Folio's flat single-operator tiers so portfolio entrepreneurs can see when inbox sprawl becomes a real bill.
Updated 25 October 2026 (2026-10-25)
Calculating your estimate…
What multiple email domains typically cost
For a single business, hosted email runs about $7 per user per month on a suite like Google Workspace. The bill changes shape when one operator runs several companies: keeping each entity in its own Workspace tenant means a separate subscription per company, so five ventures start at $35 a month before any second seat. Flat multi-domain hosting prices the operator instead — Folio's Solo plan covers 3 domains for $3.50 a month, and Studio covers 10 for $15.
Published prices, side by side
The multi-domain email price index
One person, several domains, annual list price in US dollars before tax. The unit column is the part that matters: hosts that bill per account or per operator do not charge again when you add a domain, and hosts that bill per person charge for people, not domains.
Annual list prices in US dollars for one person hosting email on 3, 5 or 10 custom domains, checked 25 October 2026. Folio is the only row that changes tier: Solo covers up to 3 domains, Studio up to 10, and Holding Co. above that. At 10 domains the table shows Studio.
| Provider and plan | Billing unit | 3 domains | 5 domains | 10 domains | Per domain at 10 domains |
|---|---|---|---|---|---|
| Purelymail Simple pricing | per account | $10 | $10 | $10 | $1.00 |
| Zoho Mail Mail Lite | per person | $12 | $12 | $12 | $1.20 |
| Migadu Micro | per account | $19 | $19 | $19 | $1.90 |
| MXroute Small | per account | $59 | $59 | $59 | $5.90 |
| Fastmail Individual | per person | $60 | $60 | $60 | $6.00 |
| Google Workspace Business Starter | per person | $84 | $84 | $84 | $8.40 |
| Migadu Mini | per account | $90 | $90 | $90 | $9.00 |
| Folio usSolo · Studio · Holding Co.tier follows your domain count | per operator | $35.88 | $144 | $144 | $14.40 |
Lowest annual cost in that column. A dot is not a recommendation — the limit beside each price is what decides the fit.
What the table does not say
- Nothing here is per domain on a per-person host. Google Workspace already covers up to 20 alias domains on one paid seat. The $84/yr is one seat, not one seat per brand.
- Storage and sending limits are the real ceiling. Migadu Micro's $19/yr includes 20 outgoing messages a day. If you send more, the cheap row is not the true price for your workload.
- Folio's price rises with domain count; the others do not. Solo covers 3 domains and Studio covers 10. Above that, Holding Co. is the only tier — check the pricing page rather than extrapolating from this table.
- Capability differs more than price. Folio has no IMAP mailbox access and no shared team inbox. If either is a requirement, the cheapest row here that meets it is not Folio.
Sources, checked 25 October 2026
- Purelymail Simple pricingvendor pricing
- Zoho Mail Mail Litevendor pricing
- Migadu Microvendor pricing
- MXroute Smallvendor pricing
- Fastmail Individualvendor pricing
- Google Workspace Business Startervendor pricing
- Migadu Minivendor pricing
- Folio Solo · Studio · Holding Co.folioinbox.com pricing
Prices checked . Every vendor can change a price or a limit without notice, so confirm on the vendor's page before buying.
Licence: CC BY 4.0. Reuse the table with credit to Folio ("Multi-domain email price index") and a link to this price index.
One Workspace seat can host many domains as secondary domains, so the per-tenant arithmetic in the paragraph above models operators who keep entities in separate tenants — not a per-domain fee. Forwarding stacks receive mail but need another product to reply as each brand.
Questions the calculator should settle
Does Google Workspace charge per domain?
No. Workspace bills per user, and one seat can host many domains as secondary domains. The calculator's separate-tenant model is for operators who keep entities separated across tenants, not a claim that Workspace charges a per-domain fee.
When does flat multi-domain pricing make sense?
Flat pricing usually makes sense when one person reads mail for several brands, LLCs, stores, or side projects and does not need a full collaboration suite for every domain.
What should I check before moving providers?
Run a domain health check first. MX, SPF, DKIM, and DMARC posture decide whether the migration will improve deliverability or simply move the same DNS problem to another provider.