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Blog Comparison table of email providers

Please, mind this article is being drafted or rewritten and may contain imperfections. It has not been yet reviewed for final publication.

Tutanota, ProtonMail, Gmail, iCloud and Liverado are email services used by millions of people worldwide. For most, it isn't easy to judge what is a good email service and what is not. This comparison table below shows the main differences between these email providers, particularly regarding security, privacy and features.

A table with ticks

Technical Specification Liverado Tutanota Proton Gmail iCloud
TLS (Transport Layer Security) y y y y y
Send end-to-end encryped emails to internal users y y y
Send end-to-end emails to external users y y y
Encrytion at rest y y y
Encryted file storage y y y
Encrypted attachments y y y
Encrypted content y y y
Encrypted contacts ? y y
Encrypted subjects y y
Encrypted metadata y
Encrypted calendars y y y
Autocrypt y y y
IMAP y y y y y
PGP/Inline y y y
PGP/MIME y y y
Pretty Easy Privacy (p≡p) y
SMTP(S) y y y y y
S/MIME y y
Security features Liverado Tutanota Proton Gmail iCloud
Zero-knwoledge passwords y y y
Zero-access encryption y y y
Brute-force protection y y y
Multi-factor authentication y y y y y
No backdoor to reset users' 2FA y y
Phishing protection y y
Malware protection y
Avoid MITM with SRI y y
Avoid MITM with checksums ?
Third party captcha y y
Anonymous usage Liverado Tutanota Proton Gmail iCloud
No log users' IP by default y
Cryptocurrency payments y y
Access through Tor network y y
Features Liverado Tutanota Proton Gmail iCloud
Custom domains y y y y
Alias addresses y y y
Unlimited virtual aliase addresses y
Inbox rules y y
Add extra domains y y y
Add extra users y y y
Catch-all domains y y y
Multi-user support y y y
White label customisation y y
Group send y y y y
Auto reply y y y y
Auto forward y y y y
Unlimited Folders y y
Unlimited calendars y y
Unlimited contacts y y
Uasability Liverado Tutanota Proton Gmail iCloud
Access on any device y y y y
Dead-man switch y y
Email scheduling y y
Self-destructing emails y y
Spam filters y y y
Sieve filters y y
Action filters y
CalDAV y
CardDVA y
Zero-knowledge full-text search y y
Open-source clients y y y
Other information Liverado Tutanota Proton Gmail iCloud
GDPR compliance y y y
PDPA compliance y
Servers in Swiztland y y
No office in the USA y y
Open-source y y y
Renewable energy y
Ad-free y y y
No big data analytics y

This comparison does not consider years of service of these providers. The secondary research has some limitations. The data in the tables may not be 100% up-to-date or accurate.

We referred to Tutanota's email comparison table, ProtonMail, Gmail and iCloud.

You can check here about the features Liverado offers.

If you have any questions, please get in touch with us at

The Liverado Editorial

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