Upgrade to the secure alternative to Fastmail

Q: Is Proton Mail more secure than Fastmail?

Proton Mail has multiple security features that Fastmail does not, including end-to-end encryption and zero-access encryption. With Proton Mail, only you control your private key that’s used to decrypt messages on your device. Proton cannot access your email contents, contacts, attachments, calendar events, etc.

Q: What’s more private, Fastmail or Proton Mail?

Fastmail emphasizes privacy by refusing to monetize your data, instead charging its users for the service. Nonetheless, Fastmail can access your email contents because they are not end-to-end encrypted. Additionally, Fastmail is based in Australia, and its servers are located in the United States. Both countries are members of the Five Eyes intelligence-sharing network. By comparison, Proton Mail cannot access your emails because they are encrypted with a private key that only you control. Proton is based in Switzerland, so our users are protected by Swiss privacy laws and beyond the reach of surveillance regimes.

Q: What is the best Fastmail alternative?

Proton Mail offers many of the same features as Fastmail (and more). But when it comes to privacy and security, Proton Mail is significantly more advanced. Proton backs up its privacy claims with automatic end-to-end encryption and zero-access encryption, all of which is open source so that anyone can verify our code does what we say. Proton Mail also offers basic services for free, while Fastmail’s Basic plan starts at $2.50/month.

No one else should have the ability to access your data.

With Proton Mail, your emails are protected by end-to-end encryption, so no one — not even Proton — can read them.

Get private email

The Fastmail alternative that can’t access your inbox

Proton Mail believes the internet should be private by default. That’s why, unlike Fastmail, your inbox is protected by strong encryption and Swiss privacy laws. Plus, you benefit from more storage space, more features, and stronger security.

A table comparing Proton Mail against Fastmail
Inbox features
Price	Free -  Pay for more storage and products,  starting at $3.49/m	Starts at $2.50/m for Basic
No ads, no tracking
Mobile apps for all your devices
Free calendar included
Free VPN included
Free drive included
Basic plan is free
End-to-end encryption and zero-access encryption
Protected by strong Swiss privacy laws
Servers in the United States	No	Yes

Get convenience and privacy

Proton Mail gives you all the features you expect from a Fastmail alternative without compromising on privacy and security.

Built alongside our community

Proton was founded by scientists who met at CERN and launched through a crowdfunding campaign. Since then, we have developed our open-source email service based on feedback and support from our community, united by our mission to build a privacy-first internet.

Proton Mail plans and pricing

Proton Free

/month

No credit card required

Get Proton for free

Up to 1 GB total storage
1 free email address
150 messages per day

3 Calendars

Sync across devices
Encrypted file sharing

View Drive plans

1 medium-speed VPN connection

View VPN plans

1 vault
10 hide-my-email aliases

View Pass plans

Mail Plus

3.99

/month

Save 12| 12 months for only 47.88

Get Mail Plus

15 GB total storage
10 email addresses
Unlimited messages
Support for 1 custom email domain

25 Calendars
Calendar sharing

Sync across devices
Encrypted file sharing

View Drive plans

1 medium-speed VPN connection

View VPN plans

1 vault
10 hide-my-email aliases

View Pass plans

Proton Unlimited

Popular

9.99

/month

Save 36| 12 months for only 119.88

Get Proton Unlimited

500 GB total storage
15 email addresses
Unlimited messages
Support for 3 custom email domains
Unlimited folders, labels, and filters
Unlimited hide-my-email aliases

25 Calendars
Calendar sharing

Sync across devices
Encrypted file sharing
Version history

View Drive plans

10 high-speed VPN connections
VPN access to streaming services globally

View VPN plans

20 vaults
Unlimited hide-my-email aliases
Integrated 2FA authenticator

View Pass plans

Proton Free

/month

No credit card required

Get Proton for free

Free encrypted email and calendar for everyone

Mail Plus

3.99

/month

Save 12| 12 months for only 47.88

Get Mail Plus

Encrypted email with premium features and free VPN

Proton Unlimited

Popular

9.99

/month

Save 36| 12 months for only 119.88

Get Proton Unlimited

Access to all Proton apps and premium features

Invia e ricevi email cifrate

Up to 1 GB total storage
1 free email address
150 messages per day

15 GB total storage
10 email addresses
Unlimited messages
Support for 1 custom email domain

500 GB total storage
15 email addresses
Unlimited messages
Support for 3 custom email domains
Unlimited folders, labels, and filters
Unlimited hide-my-email aliases

Mantieni privata la tua agenda

3 Calendars

25 Calendars
Calendar sharing

25 Calendars
Calendar sharing

Archivia tutti i tuoi dati in modo sicuro

View Drive plans

Sync across devices
Encrypted file sharing

Sync across devices
Encrypted file sharing

Sync across devices
Encrypted file sharing
Version history

Accedi ai contenuti bloccati e naviga in modalità privata

View VPN plans

1 medium-speed VPN connection

1 medium-speed VPN connection

10 high-speed VPN connections
VPN access to streaming services globally

Proteggi le password e l’identità

View Pass plans

1 vault
10 hide-my-email aliases

1 vault
10 hide-my-email aliases

20 vaults
Unlimited hide-my-email aliases
Integrated 2FA authenticator

What people say about Proton Mail

Mark Ruffalo

Proton Mail user

I love my ProtonMail

Jack Dorsey

Twitter co-founder

My favorite email service

@DebLRobison

Twitter

You get what you pay for. In the case of big tech, if you pay nothing, you get used. I quit using Gmail and switched to @ProtonMail

@Aitchjd

Twitter

Thanks Proton for keeping us all safe in the complicated internet universe.

An alternative to Fastmail that respects your privacy

Encrypt your emails by default

With Proton Mail, you don’t need any special tools to protect your emails. We automatically lock your messages behind end-to-end encryption and zero-access encryption. Unlike Fastmail, Proton could not read your emails even if we wanted to.

Block spy trackers and phishing

Proton Mail blocks trackers so you can read your emails with peace of mind. PhishGuard and Link confirmation ensure you’ll never fall for phishing attacks.

Unsubscribe from emails you don’t want

Quickly unsubscribe from newsletters and mailing lists you don’t want with a single click.

Manage your calendar from your email

RSVP for events right from your inbox. Create events, send invitations, and set reminders — all from your encrypted calendar.

Always ad-free

We don’t show ads, not even on our Free plan. We make money when people upgrade to a paid plan for more storage and features.

Open source and audited

All Proton apps are open source and audited by independent security experts. Founded by scientists, we believe in the principle of peer review to secure our code.