Does Fastmail work with Outlook, Apple Mail, and Thunderbird?

Yes — full IMAP support means any standard client works, and calendars and contacts sync over CalDAV and CardDAV. The native apps and webmail are good enough that many users stop needing a separate client.

How does migration from Gmail work?

Fastmail's built-in importer pulls mail, contacts, and calendars from Google directly over IMAP. Do the import first, then switch your domain's MX records — in that order, downtime is effectively zero.

Its business model is subscriptions, not advertising, and it doesn't scan mail to profile you. Note that it isn't end-to-end encrypted at rest the way Proton Mail is — if E2E encryption is a hard requirement, Proton is the better-fit choice.

ReviewProvider review

Fastmail Review

Fastmail's pitch is that email deserves to be someone's whole product, not a loss-leader for an advertising business or an office suite. From $3/user/mo — $5/user/mo for the Standard plan most businesses actually need — it charges for that focus directly. After using it against the suite defaults, here's where we think it fits. Prices were verified in September 2026.

Last updated: September 7, 2026By: W. Miller, Editor, Digital Hosting — reviewed independently by the Digital Hosting editorial team.

Disclosure: No link on this page earns us a commission. Where we do have a paid link elsewhere on the site, the page says so.

Summary verdict

Verdict

Fastmail is the best per-seat email host for individuals and small teams who want polish without a suite: $5/user/mo on the Standard plan (billed annually) buys first-class custom-domain support, no intro-discount-then-renewal-jump, and a webmail client built on JMAP, the sync protocol Fastmail co-authored, rather than on IMAP polling. Know the tier line before you buy: the cheaper $3 Basic plan is @fastmail.com addresses only, with no custom domains or third-party IMAP clients. Fastmail is deliberately not a Google Workspace replacement — there are no shared docs or meetings — and it's priced accordingly.

Top pick

Fastmail

from $3/user/moVerified September 2026

Check current pricing

At a glance

Comparison table

Fastmail

Independent business email

Premium Pick

Starting price: from $3/user/moBasic, billed annuallyVerified September 2026
Ease: 5 of 5
Performance: 5 of 5
Support: 4 of 5
Migration: Included
Email: Included

See current pricing

Provider	Best for	Starting price	Ease	Performance	Support	Migration	Email	Get it
FastmailSolo operators and small teams that want a great IMAP/JMAP client	Independent business email	from $3/user/moBasic, billed annuallyVerified September 2026	Ease of use: 5 of 5	Performance: 5 of 5	Support: 4 of 5	Included	Included	See current pricingNon-affiliate recommendation

Providers in this guide

About this provider

Best indie business email

Fastmail

Solo operators and small teams that want a great IMAP/JMAP client

4.7

Editor score

Pricing: from $3/user/moVerified September 2026

Pros

+Excellent web and mobile clients
+Custom domains from the Standard plan up
+Independent and privacy-focused

Cons

−Entry Basic plan excludes custom domains and third-party IMAP clients
−No bundled office suite
−Calendar and contacts thinner than the giants

Confirm current pricing on the provider's site.

Visit Fastmail

What Fastmail does well

Speed is the brand and it's earned — the webmail and mobile apps are noticeably quicker than Gmail or Outlook, built on the JMAP protocol Fastmail itself helped standardize alongside full IMAP, CalDAV, and CardDAV support.

Masked email is the quietly great feature: generate a unique address per signup, and when one starts getting spam you know exactly who leaked it and can kill it without touching your real address. Custom domains are supported properly from the Standard plan up, with straightforward DNS guidance including SPF, DKIM, and DMARC — but note they are NOT on the entry Basic plan.

The pricing is adult: $5/user/mo Standard billed annually ($6 billed monthly) for custom-domain email, $3/user/mo Basic if a @fastmail.com address is enough, cheaper on 24- or 36-month terms, and no first-year promo games — the renewal price is the sticker price, which makes multi-year budgeting boring in the best way.

Where it falls short

It's email, calendars, and contacts — full stop. No documents, no shared drives, no meetings. Teams that need those pair Fastmail with other tools or should honestly just buy Google Workspace at $7/user/mo.

Per-seat pricing has a floor: at five-plus mailboxes that don't each belong to a daily human user, flat-fee hosts like MXroute ($59/yr, unlimited mailboxes) become dramatically cheaper for role accounts and secondary domains.

Storage on Basic is modest; heavy archivers will want the higher tier. Check current allowances against your mailbox size before migrating.

Best fit for

+Solo founders and small teams on custom domains
+Anyone de-Googling without giving up a polished client
+Privacy-conscious users who prefer paying to being profiled

Consider another option if

−Your team needs shared documents, drives, or video calls
−You want the cheapest possible mailbox — flat-fee hosts undercut per-seat pricing
−You require enterprise compliance tooling and SSO

Questions readers ask

FAQ

If you're on your own domain, the comparison isn't with free Gmail — custom-domain Google means Workspace at $7/user/mo. Against that, Fastmail Standard at $5/user/mo is meaningfully cheaper for arguably better email. Against a free @gmail.com address, you're paying $60/yr for your own domain, privacy, and support (or $36/yr on Basic if a @fastmail.com address is enough).

Ready to move forward?

Fastmail is our top pick for this category.

Check current pricing on the provider's site — promos and renewal rates change frequently.

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Written and reviewed by

W. Miller — Editor, Digital Hosting

W. Miller is the founder of TetraCore, LLC, the software company that owns and publishes Digital Hosting, and has spent 35 years in software development, technology and related services, including cloud and hosting. The uptime monitoring and price-collection infrastructure behind this site's original research is built and run in-house.

See our affiliate disclosure and how we test and score providers.