E-mail configuration

info

If two-factor authentication is enabled, you must use an application-specific password when setting up external applications (e.g., calendar/address book apps, WebDAV clients, Drive synchronization tools, or Exchange ActiveSync).

Further information: Application-specific passwords for external applications

Set Up Other Mail Clients Manually

Our servers are configured so that current mail clients can automatically detect the necessary settings based on your mail address (@mailbox.org). This means that, in most cases, no manual setup is required.

Mail Address & Password for Authentication

Login always consists of the following credentials:

Username	Password
Your main mail address, e.g. john.doe@yourdomain.org	Your mailbox password or an application password (if two-factor authentication is enabled)

Note: If you have activated two-factor authentication (2FA), you cannot use your normal mailbox password for external mail clients. In this case, you must create and use a dedicated application password for each mail client in the mailbox settings under All settings | Security | Application passwords.

Incoming Mail Server, Ports, and Encryption

Protocol	Server	Port	Connection Security	Authentication Method
IMAP	imap.mailbox.org	993	SSL/TLS	Your mailbox password or application password
POP3	pop3.mailbox.org	995	SSL/TLS	Your mailbox password or application password

Outgoing Mail Server, Ports, and Encryption

Protocol	Server	Port	Connection Security	Authentication Method
SMTP	smtp.mailbox.org	465	SSL/TLS	Your mailbox password or application password
SMTP (alternative)	smtp.mailbox.org	587	STARTTLS	Your mailbox password or application password