Business email and office suites · Comparison
Fastmail for Business vs Microsoft 365 Business vs Zoho Workplace
3 products compared side by side: what you pay for with each one first, then the five access facts, entry prices, recorded plan limits and the bottom line of each review. The evidence note under the table says how each product was checked.
Side by side
| Metric | Fastmail for Business | Microsoft 365 Business | Zoho Workplace |
|---|---|---|---|
| What you're paying for | Worth the priceEmail, calendars and contacts on your own domain with 60 GB per user for $5 a month on 12-month terms, with open protocols and a documented API. | Worth the priceA 100 GB Exchange mailbox, 1 TB of OneDrive and Office for the web per user from $5.40 a month, with desktop Office apps one plan up. | Worth the priceBusiness mail on your own domain from $1 per user a month, with SSO, audit logs and an online DPA on every paid plan, and a free plan for 5 users. |
| Overall score | 5.7 | 7.6 | 8.5Best |
| Free option | 30-day free trial | 30-day free trial | Free plan |
| Card to start | No card needed | Card required | No card needed |
| Getting access | Self-serve | Self-serve | Self-serve |
| Starter priceCheapest paid plan | $3/user/mo | $5.40/user/mo | $1/user/mo |
| Pricing model | Per seat | Per seat | Per seat |
| Pricing page | Public prices | Public prices | Public prices |
| Billing unit | Per user per month; cheaper on 12-, 24- and 36-month terms | Per user per month; up to 300 users across all Business plans | Per user; Mail plans yearly only, Workplace plans yearly or monthly |
| Free option | No free plan; 30-day trial for 5 active users, no card | No free plan; one-month trial for up to 25 users, credit card required | Mail Free for up to 5 users on one domain; 15-day trial, no card |
| Reference scenario (5 users, annual) | $25/mo on Standard ($5 × 5), computed | $27/mo on Business Basic (no Teams) ($5.40 × 5), computed; $35 with Teams | $6.88/mo on Mail Lite 5 GB + 45 GB add-ons ($1 × 5 + $1.88), computed; $15 on Workplace Standard |
| Month-to-month price | $6 per user on Standard ($4 / $10 for Basic / Professional) | $6.48 per user on Business Basic (no Teams); $8.40 with Teams | None for Mail Lite and Mail Premium; $4 / $7 for Workplace Standard / Professional |
| Storage per user | 6 GB (Basic), 60 GB (Standard), 150 GB (Professional), per user | 100 GB mailbox + 50 GB archive and 1 TB of OneDrive (1.5 TB archive on Premium) | 5 or 10 GB (Lite), 50 GB (Premium), 30 GB + team drive (Standard), 100 GB + 1 TB team drive (Professional) |
| Domains, aliases and catch-all | From Standard: 100 domains plus 1 per user, 600 aliases plus 15 per user, catch-all | Up to 5,000 domains, 300 to 400 aliases per user; no catch-all stated | Up to 30 domains and 30 addresses per mailbox on paid plans; catch-all |
| Office apps | None; file storage with WebDAV | Office for the web and mobile on Basic; desktop apps from Standard | Writer, Sheet and Show in the browser from Workplace Standard |
| Video meetings | Not offered | Teams for 300 with recording in the plans with Teams | Zoho Meeting with cloud recording from Workplace Standard |
| Retention and eDiscovery | Retention archive on Professional ($9); no eDiscovery | Litigation hold and eDiscovery export on Premium ($22); archiving add-on $3 | Mail Premium ($4) and Workplace Professional ($6) |
| SOC 2 / ISO 27001 | No SOC 2 certification pursued; ISO 27001 not stated | Office 365 in SOC 2 Type II and ISO 27001 scope (Service Trust Portal) | SOC 2 Type 2 and ISO 27001 for all cloud services (report under online NDA) |
| HIPAA BAA | Not offered (not HIPAA compliant) | Included in the data protection addendum by default | BAA template on request from Zoho legal |
| EU data storage | EU or US primary storage on every plan; replica, backups and logs in the US | EU Data Boundary for EU and EFTA sign-ups | EU data center (Amsterdam, Dublin) chosen by country at sign-up |
| SAML SSO | Not offered | Single sign-on for apps with Entra ID on every plan | Every paid plan |
| Mailbox export | ZIP per folder for each user (format not stated); no admin export of all users | PST from classic Outlook per user; admin eDiscovery export on Premium | Users: EML in ZIP; admins: every mailbox as ZIP or PST on paid plans |
| Bottom line | From its public pages, Fastmail is a focused email, calendar and contacts service with 60 GB per user for $5, open protocols and no lock-in. It has no office suite, meetings, SSO or SOC 2 report, and its help articles disagree on a few limits and deletion periods. | From its public pages, Microsoft 365 gives a large mailbox and 1 TB of OneDrive per user at a low price, with shared mailboxes, an audit log and a BAA on Business Basic. Retention and eDiscovery sit on Premium or add-ons, and refunds and seat cuts are limited to 7 days. | From its public pages, Zoho Workplace is the lowest-priced suite here, with SSO, audit logs, shared mailboxes and migration on every paid plan and retention from $4. Mail plans are yearly only, editors and meetings start on Workplace Standard, and a few prices differ between pages. |
Evidence: Fastmail for Business: facts checked 2026-10-16 from its public sign-up and pricing pages, no completed hands-on run; Microsoft 365 Business: facts checked 2026-10-16 from its public sign-up and pricing pages, no completed hands-on run; Zoho Workplace: facts checked 2026-10-16 from its public sign-up and pricing pages, no completed hands-on run. Prices in USD as listed, excluding tax. "–" means not recorded.
When to pick each
In the words of each review, with the date its facts were checked.
From our Fastmail for Business review
Checked Oct 16, 2026- Pick Fastmail for Business when
- You want month-to-month billing on a mail plan, 60 GB per user and a 30-day trial without a card.
- Pick Zoho Workplace when
- You need SAML SSO, required 2FA, eDiscovery or a free plan for up to 5 users.
From our Fastmail for Business review
Checked Oct 16, 2026- Pick Fastmail for Business when
- You want catch-all addresses, open protocols and cancellation at any time without penalty.
- Pick Microsoft 365 Business when
- You need office apps, Teams meetings, SSO or a HIPAA BAA.
From our Microsoft 365 Business review
Checked Oct 16, 2026- Pick Microsoft 365 Business when
- You need desktop Office apps, Teams meetings for 300 and a HIPAA BAA that comes with the terms.
- Pick Zoho Workplace when
- You want a free plan for up to 5 users, a catch-all address, retention and eDiscovery from $4, and seats you can cut mid-term.
From our Zoho Workplace review
Checked Oct 16, 2026- Pick Zoho Workplace when
- You want a free plan, a catch-all address and retention and eDiscovery from $4 per user.
- Pick Microsoft 365 Business when
- You want a 100 GB mailbox and 1 TB of OneDrive on the entry plan, desktop Office apps and Teams meetings for 300.
From our Zoho Workplace review
Checked Oct 16, 2026- Pick Zoho Workplace when
- You need SAML SSO, required 2FA, SOC 2 and ISO 27001, or document editors and meetings.
- Pick Fastmail for Business when
- You want month-to-month billing on a mail plan with 60 GB per user and a 30-day trial without a card.
Entry price
Baseline: each product's cheapest paid plan, per month. Included usage differs, so read the line under each price.
- Fastmail for BusinessBasic$3/user/mo12-month terms; $4 month to month; $2.80 on 36 months
- 6 GB per user (5 GB of mail, 1 GB of files)
- Own-domain addresses only with a Standard or Professional admin
- Web and mobile apps only: no IMAP, POP or API tokens
- Microsoft 365 BusinessBusiness Basic (no Teams)$5.40/user/moAnnual commitment; $6.48 month to month
- Exchange mail on your domain, 100 GB mailbox + 50 GB archive
- 1 TB of OneDrive per user
- Word, Excel, PowerPoint and Outlook for web and mobile
- No Teams meetings
- Zoho WorkplaceMail Lite$1/user/moBilled annually only; $1.25 for 10 GB
- 5 GB or 10 GB of mail per user, shared calendars
- Up to 30 domains and 30 addresses per mailbox
- Shared mailboxes, IMAP and SAML SSO
- Mail storage add-ons at $1 a year per 10 GB
Prices as listed on each pricing page, in USD per month, excluding tax. Observed: Fastmail for Business 2026-10-16, Microsoft 365 Business 2026-10-16, Zoho Workplace 2026-10-16.
Which one fits
- If you need to start today without a sales call
- Zoho WorkplaceSelf-serve sign-up, no card needed; the highest score of the 3 self-serve products here (8.5/10).
- If you want to try it without entering a card
- Zoho WorkplaceFree plan, no card needed; scored 8.5/10.
- Lowest starter price
- Zoho Workplace$1/user/mo for the Mail Lite 5 GB (billed annually) plan.
- Highest overall score
- Zoho Workplace8.5/10 (Excellent). The review shows the score breakdown and the run behind it.
Picked by fixed rules from the table above, not by hand. How we score
Full reviews
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