Services mailbox divides its offerings into those for private customers and those for business customers. The offerings include email services with spam and virus protection, web
groupware including
online office suite, a proprietary
video conferencing system, and
file sharing – as an alternative to
Microsoft 365,
Google Workspace, or
Google Drive hosted in Germany.
Pricing mailbox charges private customers according to the
prepaid principle. If desired, payment can also be made by cash deposit into the bank account or anonymously by
cash by post.
Security mailbox developed various new approaches to protect user data: for example, the provider was the first to introduce the option of subsequently encrypting all incoming emails with the user's public PGP key, thus providing special protection against access by third parties should the mailbox password be lost or compromised. When using the
webmail offer, it is possible to
encrypt and
decrypt emails using
PGP and since November 2023 also using
S/MIME without special client software (email program with any plugins that may be required), without necessarily using a
browser extension such as
Mailvelope. Keys and the encryption process take place outside the user's sphere of influence on mailbox's servers, which, however, contradicts the principle of
end-to-end encryption. However, according to Peer Heinlein, CEO of mailbox, the
private keys are stored on the servers at all times with a password known only to the user, so they cannot be viewed by administrators. In addition, this avoids the need to store private PGP or S/MIME keys on end devices that are perceived as insecure. mailbox used
Extended Validation Certificates as one of the first providers alongside security mechanisms such as
DANE and
DNSSEC. Through the selection of high-quality
cipher suites and additional HTTP security headers such as
HSTS, a particularly high level of encryption and very good protection against manipulation by third parties is achieved.
Video conferencing The video conference service is based on the open-source
OpenTalk software.
Additional features Users of mailbox can also be reached via
Jabber chat through a dedicated
XMPP server. The service also offers
address books,
calendars and an online office suite that includes a word processor and spreadsheet application. == Software used ==