Security & Privacy

In this category you will find information about security and privacy at mailbox. You will learn how to secure your communication with mailbox Guard, PGP, and S/MIME, set up two-factor authentication (2FA), or use the Tor Browser and the mailbox Tor exit node. We also show you how to work with YubiKeys, use app passwords, verify SSL/TLS certificates, and create backups of your keys. Other topics include protecting calendars and address books, handling encrypted mailboxes, and tips for the secure use of mail apps.

Access security for mailbox - 2FA, app passwords, and email passwords

Anonymous new registration

Application passwords for external programs

Are the calendar and address book encrypted?

How to use two-factor authentication - 2FA

Configuring the Tor Browser

Access data at risk when using mail apps – as of 2025

Email encrypted - by sender or encrypted mailbox

Should I forward virus warnings

Google Captchas in the registration form

ID4me

E-Mail app passwords

Upload the private key to the server

SSL-TLS encryption at mailbox

Using the Tor exit node from mailbox

Using YubiKey with your iPhone or iPad

HowTo - YubiKey NEO as PGP smartcard

YubiKey - Webmail with one-time passwords