FAQ - Frequently Asked Questions on the KIT Mailbox


Logon window in Outlook 2019 appears repeatedly even though the password is correct
With Outlook 2019 (and probably Outlook 365 and Outlook 2016 Click to Run as well), the login window may appear sporadically every now and then because a connection is to be established with vorname nachnameYle3∂kit edu (ab1234Rok4∂student kit edu; ab1234Uyj6∂partner kit edu) or PF-HierarchyEky3∂kit edu.
The following registry key is a remedy:
  • [HKEY_CURRENT_USER\Software\Microsoft\Office\\16.0\Outlook\AutoDiscover]
Outlook on Windows 7 cannot connect to the Exchange Server
Since mid-January 2020, logon to the Exchange Server is only possible with TLS 1.2. In order for Outlook to use TLS 1.2 under Windows 7, the corresponding registry keys must be set, see also https://support.microsoft.com/en-us/help/3140245/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-wi
The following registry keys provide a remedy. Creating these registry keys requires administrator rights.
  • [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]
  • [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]
  • [HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]

How to configure an out-of-office message?

Outlook 2010

"File - Info - Automatic Replies"

Outlook 2013

"File - Account Settings - Automatic Replies"

Outlook Web Access

  • Log in to OWA
  • "Gears icon (top right) - Options - Organize E-Mail - Automatic Replies"

How to set up email forwarding?

For your KIT mailbox, you can enter a forwarding address in the Self-Service Portal of SCC .

How to sign and/or encrypt an email?

Please find instructions at http://www.ca.kit.edu.

Why is access via Outlook not possible anymor under Windows XP?

Windows XP has problems with the SAN certificate for oa.kit.edu. There is a workaround, indeed, but Windows XP is too old to be supported officially by Microsoft and hence, among others, has no security patches. It is recommended thus to change to a current system.

How do I know whether an email is digitally signed?

In Outlook, digitally signed emails are marked with a red ribbon. In an opened message, you can click on the red ribbon in the top right corner to have displayed further information on the signature of the sender.

It is indicated if the signature is not valid or if the certificate is not trustworthy.

Is it possible to get a non-personal e-mail address like role∂kit.edu, role∂oe.kit.edu or role∂domain.tld?

Yes, that is possible, provided that the subdomain is hosted by the mail servers of the SCC. Please contact our Service Desk. There are ticket templates available for the ITB.

The email address can be a distribution list or a mailbox. A mailbox for a role is called Funktionspostfach, in order to distinguish it from a personal mailbox.

In case of a distribution list, every member gets a copy of the email. In case of a mailbox the email stays in the Funktionspostfach, for that several users can have (granular) access permissions.

In both cases it is possible to send as this email address.

Please note, that email addresses like rolePoj2∂kit edu have to be approved by KNN. Simply contact knn∂kit.edu.

How can I prevent automatic download of pictures in HTML emails?

Outlook (Outlook 2016 for Windows)

"File\Options\ Trust Center\Trust Center Settings\Automatic Download\Don't download pictures automatically in HTML email or RSS items".


Thunderbird (Thunderbird 52)

"Tools\Options\Privacy\Allow remote content in messages"


Outlook Mac (Outlook 2016 for Mac)

Preferences\Reading\automatically download pictures from the Internet


Mac Mail (Mac Mail 10 Sierra)

Preferences\Viewing\Load remote content in messages


OWA (OWA Exchange Server 2013)

In OWA pictures are not automatically downloaded, unless the sender is on the safe sender list.


iPhone (iOS 11)

Settings\Mail\Load Remote Images


Android (Samsung Galaxy S8 Android 8)

Email\(menue)\ (settings)\<account>\Show images