Instructions for Linux Mailbox
Setting up your e-mail program

Email setup for students: K-9 Mail (Android)

These instructions describe how to integrate your student mailbox into the K-9 Mail app.

Step 1: Account initialisation

1. Start K-9 Mail and select “Los geht's” (engl. Let's get started).

Enter email address in K-9 Mail app
Enter email address in K-9 Mail app

2. Enter your email address (firstname.lastname@stud.tu-darmstadt.de) and tap “Weiter” (engl. continue).

Step 1

Enter password in K-9 Mail app
Enter password in K-9 Mail app

3. Enter your password for <TU-ID> and confirm again with „Weiter“ (engl. continue).

Step 2: Adjust the configuration manually

The app automatically detects the server settings. However, the user name must be corrected for the login to be successful.

1. In the “Konfiguration gefunden” (engl. configuration found) window, select “Konfiguration bearbeiten” (engl. edit configuration).

2. Check and correct the data in the masks for incoming and outgoing mail.

Incoming mail server settings
Incoming mail server settings

Incoming mail server (IMAP):

  • Protocol: IMAP
  • Server: imap.stud.tu-darmstadt.de
  • Security: SSL/TLS
  • Port: 993
  • Authentication: Normal password
  • User name: Replace the default value with your personal <TU ID>, e.g.: ab12cdef.
  • Password: Your password for your TUID
Outgoing mail server settings
Outgoing mail server settings

Outgoing mail server (SMTP):

  • Server: smtp.tu-darmstadt.de
  • Security: SSL/TLS
  • Port: 465
  • Authentication: Normal password
  • Username: Replace the username with your <TU-ID>, e.g.: ab12cdef.
  • Password: Your password for your TU-ID

Step 3: Display options & completion

1. Under “Anzeigeoptionen” (engl. display settings), set your name (this will be displayed to recipients of your emails).

Further settings
Further settings

2. Permissions: You can now manage access to contacts and notifications.

  • Kontakte (engl. contacts): This access is voluntary and not required for basic operation.
  • Benachrichtigungen (engl. notifications): Permission is also voluntary, but is recommended in order to be notified of new messages in a timely manner.

Documentation status: January 2026