Alternatives to Fastmail
A paid, privacy-focused email, calendar and contacts service with web and mobile apps. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Fastmail
A paid, privacy-focused email, calendar and contacts service with web and mobile apps.
Replacements
Listings that take over the same core job as Fastmail.
Gmail
Google's email service, used on the web and through Android and iOS apps.
Gmail offers a free account with strong spam filtering and AI drafting, but ties your mail to a Google account instead of a paid private host.
Proton Mail
Official Proton Mail apps for reading and sending end-to-end encrypted email on phones, desktops and the web.
Proton Mail adds end-to-end encryption by default and desktop apps for Windows, macOS and Linux, but only works with a Proton account.
mailbox.org
A German email and workspace service with mail, cloud storage, video meetings and office tools.
mailbox.org is a paid German service adding cloud storage, video meetings and office tools, with data hosted in Germany under GDPR.
Zoho Mail
An ad-free hosted business email service for custom domains with calendar, contacts, notes and tasks.
Zoho Mail is ad-free business email for custom domains with calendar, contacts, notes, tasks and a choice of data centre, aimed at organisations rather than individuals.
Posteo
German ad-free email provider with calendar, address book and notes, run on green energy.
Posteo is a German provider with a low fixed monthly price and signup without personal details, but base storage is 4 GB and no mobile apps are listed.
Mailfence
Encrypted email service from Belgium with OpenPGP support, calendars, contacts and document storage.
Mailfence is a Belgian service with a free tier, OpenPGP encryption in the browser, custom domains and aliases, and advanced features on paid plans.
Runbox
A paid, ad-free email service hosted in Norway and powered by renewable energy.
Runbox hosts ad-free paid email in Norway under Norwegian privacy law and GDPR on renewable hydropower, with a fully functional 30-day trial.
StartMail
Paid private email service from the Netherlands with unlimited aliases and one-click encryption.
StartMail is a paid Dutch service with unlimited disposable aliases and password-based encryption for recipients, offered through the web only.
Also worth comparing
These listings name Fastmail as their own alternative, so the relationship runs both ways.
Disroot
Donation-funded platform offering free email, cloud storage, XMPP chat and other privacy-focused online services.
Fastmail is a paid service with email, calendar and contacts, custom domain support and a choice of EU or USA data residency, but no free plan.
Google Calendar
Google's free web calendar for scheduling events, used with a Google account and synced across devices.
Fastmail provides a paid calendar with email and contacts, EU or USA data residency and custom domains, but it has no free plan after the trial.
HEY
An email and calendar service from 37signals that screens senders before they reach your inbox.
Fastmail offers paid email, calendar and contacts with Android and iOS apps, custom domains and EU or USA data residency, but uses a traditional inbox without sender screening.
iCloud Mail
Apple's hosted email service, with a web client and built-in support on Apple devices.
Fastmail is a paid private host with email, calendar, contacts and custom domains, offering EU or USA data residency and no free plan.
Migadu
Email hosting for custom domains, priced by usage rather than by mailbox, with webmail.
Fastmail adds calendar, contacts and Android and iOS apps with custom domains and EU or USA data residency, priced as a paid service.
Proton Calendar
An end-to-end encrypted calendar from Proton, available on the web and on iOS and Android.
Fastmail is a paid email, calendar and contacts service with EU or USA data residency and custom domains, but it does not describe end-to-end encrypted events.
Purelymail
Low-cost email hosting for your own domains, with IMAP, POP3, SMTP and optional webmail.
Fastmail costs more but adds calendar, contacts, Android and iOS apps and EU or USA data residency for custom domains.
Tuta Desktop
The desktop client for Tuta's encrypted mail service, with end-to-end encrypted mail, calendar and contacts.
Fastmail is a paid private host with email, calendar and contacts and EU or USA data residency, but does not advertise end-to-end encryption.
Similar software
Related functionality, not a direct replacement.
Thunderbird
Mozilla’s desktop mail client, with calendar, contacts and a unified inbox, funded by donations rather than ads.
imapsync
Command-line tool for migrating or backing up between IMAP servers.
