Posteo review

Posteo is a no-frills paid inbox that has built its reputation on anonymity and sustainability. Signup does not collect personal information, and payment details are not tied to the account. The account includes 4 GB of storage, which can be raised to a maximum of 75 GB, with each extra gigabyte billed monthly. Encryption options go further than the plain interface suggests: all saved data can be encrypted at the click of a button, inbound mail can be encrypted with S/MIME or OpenPGP, and address books and calendars can be encrypted too. Two-factor authentication uses TOTP. Posteo sends and receives attachments up to 100 MB, offers a web app instead of native apps, and works with any client over IMAP or POP3. The interface comes in 12 colors with dark mode. Prices are in euros, so we list the USD price as pending. There is no free plan and no bundled calendar app or drive beyond the basics.

Who it is for

people who want an anonymous, low-cost inbox without an app ecosystem

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• 4 GB storage, expandable up to 75 GB
• Inbound encryption with S/MIME or OpenPGP
• All saved data can be encrypted at the click of a button
• Two-factor authentication with TOTP
• Attachments up to 100 MB sending and receiving

Strengths and weaknesses

• Strength: Signup collects no personal information
• Strength: Uses only open source software
• Strength: Personal support by email at no extra charge
• Weakness: Prices are listed in euros, so the USD price is pending
• Weakness: No free plan
• Weakness: Uses a web app rather than dedicated mobile apps

Key facts

• Free plan: No
• Storage: 4 GB, up to 75 GB
• Attachments: 100 MB
• 2FA: TOTP
• Based in: Berlin, Germany

Where it ranks

Posteo is No. 6 in our Best Secure Email Services verdict.