mailbox vs Posteo

mailbox

• People who want paid, ad-free email hosted in Germany
• PGP or S/MIME users who want encryption inside webmail
• Families: up to 10 mailboxes can share calendars, contacts and Drive storage
• Small businesses wanting mail, files and video calls from one European provider

Posteo

• People who want a low-cost, ad-free mailbox they pay for directly
• Signing up without handing over a name, address or phone number
• Buyers who care about green energy and a company financed only by its users

mailbox

• There is no free plan; any plan can be tried free for 30 days.
• The €1 Light plan is paid a year in advance and has 2 GB of mail storage, no Drive storage and support limited to contract questions.
• There are no mailbox apps of its own for mail: it runs in the browser or in other mail apps, and file sync on phones uses the separate OX Drive app.
• Prices are in euros. Private prices include VAT, business prices are net, and the business calculator adds a service package from €25 a month.

Posteo

• Custom domains are not supported; addresses use Posteo's own domains such as posteo.de, posteo.net or posteo.com.
• There is no free plan and no trial account, though credit is refunded in full if you cancel within the first month.
• Payment is prepaid in euros, with a minimum top-up of €12, which is about one year's fees.
• It is used through webmail and a web app or through other mail apps over IMAP or POP3, and it offers no cloud storage.

mailbox

Webmail with IMAP, POP3 and SMTP

Mail is read in the browser or in any mail app over IMAP, POP3 and SMTP. Standard and Premium add a tabbed inbox, email statistics and collection from external POP3 accounts.

PGP and S/MIME encryption

The Guard feature handles PGP and S/MIME inside webmail, and incoming mail can be kept in a PGP-encrypted inbox. Mailvelope and mailbox's own PGP key server are supported on every plan.

Aliases and custom domains

Light includes 3 @mailbox.org aliases, Standard and Premium 25. The two higher plans add custom domains with 50 or 250 aliases and 25 or 50 disposable addresses.

Drive cloud storage

10 GB on Standard and 100 GB on Premium, expandable for a fee, with password-protected download links that expire, WebDAV access and optional encryption with your own PGP key.

Office, calendar and contacts

Text documents, spreadsheets and presentations are edited in the browser on Standard and Premium. Calendar, contacts and tasks are on every plan and sync over CalDAV and CardDAV.

Meet video conferencing

Browser-based video meetings with breakout rooms, screen sharing, chat and surveys. Guests join from an invitation link without an account or an install.

Posteo

One flat-priced account

€1 a month covers email with 4 GB of storage, 3 aliases, 3 calendars, an address book and notes. Storage can grow to 75 GB and aliases to 25 for small monthly add-on fees.

Encryption of stored data

Crypto mail storage encrypts saved email, attachments, metadata and notes, and the address book and calendar can each be encrypted with your own password at the press of a button.

End-to-end encryption in webmail

PGP through the Mailvelope plug-in and S/MIME through Posteo's own plug-in work inside the webmail interface, and incoming mail can be encrypted with either.

Sign-up without personal details

Registration asks for no name or address, payment data is kept separate from email accounts, and credit can be added by bank transfer, PayPal, credit card or cash.

Calendar, contacts and notes

Calendars sync over CalDAV and can be shared read-only by ICS link, contacts sync over CardDAV, and notes can be synchronized with Apple Notes.

Passkeys and login protection

Login supports two-factor authentication (TOTP), up to 5 passkeys and up to 5 app passwords. An extra protection mode blocks access from external programs over IMAP.

mailbox

• Light€1

  per month, annual payment only (€12 a year)

  2 GB of mail storage, 3 @mailbox.org aliases, calendar and address book. Support covers contract, credit balance and password reset questions only.

• Standard€3

  per month, paid annually (€36); €4 paid monthly

  20 GB of mail and 10 GB of Drive storage, 25 aliases, custom domains with 50 aliases, online document editing and family accounts.

• Premium€9

  per month, paid annually (€108); €12 paid monthly

  50 GB of mail and 100 GB of Drive storage, custom domains with 250 aliases, replies within 24 hours on business days and a phone callback service.

• Business€1 to €12

  per user / month, net, plus a service package

  Business Light, Standard and Premium accounts at €1, €4 and €12 a user, with a service package: Silver €25, Gold €75 or Platinum €250 a month.

• EnterpriseCustom

  For large companies with advanced requirements, quoted on request.

Posteo

• Email account€1

  per month, prepaid from account credit

  4 GB of storage, 3 aliases, 3 calendars, address book and notes. Extra storage costs €0.25 per GB a month and extra aliases or calendars €0.10 each.

mailbox

• Annual discount

  Save 25% when paying annually

  Standard costs €3 a month when paid annually (€36) against €4 paid monthly, and Premium €9 a month (€108) against €12. The prices page labels both as a 25% saving.

Posteo

No public discounts listed.