What happens if an e-mail is rejected by RHRZ's spam and virus filter?

If an e-mail is detected as suspicious by RHRZ's spam and virus filter, it can be rejected by RHRZ. The sender of the e-mail will be notified of this process. The recipient will not receive any notification.

What is the RPTU Active Directory and how can I use it in Thunderbird?

An Active Directory is a centrally stored address book, which in the case of the RPTU contains the mail addresses of all employees and is automatically updated. This address book can only be used with an employee account. Here you will find Instructions for integrating the Active Directory address book into Thunderbird.

How can I subscribe to or create mailing lists?

The RHRZ operates two servers on which an e-mail list management program is installed. The program allows you to configure e-mail lists, add or delete new users etc. via a web interface.

There are lists in the format listenname@uni-kl.de and listenname@rhrk.uni-kl.de: 

Contact person for setting up a list:

Philipp Graupeter (4515)

How can I make an entry in the circular mail to all members of the university?

Via the news system of the RHRZ you can write your own contributions for the RPTU circular mail, manage them and submit them for publication. These can be contributions for the daily collective circular mail or news that are sent as a separate individual circular mail (RPTU Info) to all circular mail subscribers at RPTU.

All details can be found in the step-by-step instructions for the RPTU circular mail.


What is phishing and how can I protect myself against it?

Phishing refers to the attempt to obtain your personal data, usually with the aim of fraudulently misusing your account. One of many phishing methods is the sending of e-mails that ask the recipient to disclose personal data, e.g. via a linked website. Often both the e-mail and the website of another trustworthy organization (e.g. university, government agency, bank) are replicated.

Active measures taken by RHRZ against phishing e-mails:

  • Use of SPAM, virus and phishing detection measures. E-mails from insecure sources and with potentially undesirable content are not accepted by the TU (no e-mails are rejected!) However, this method usually does not allow phishing e-mails tailored to the RPTU to be fended off.
  • IP addresses of external servers are blocked by the RPTU network if they are linked in phishing e-mails that are specifically directed at users of the RPTU. This at least protects users within the campus network.
  • The IP address of the linked web server of a phishing attack is reported to the respective provider.

Passive measures taken by RHRZ against phishing emails:

  • You will never receive a request from RHRZ - as well as from any other trustworthy service provider - to send a password or similar via e-mail.
  • In the case of administrative notices, e.g. to the RHRZ password page, you will always be asked to navigate to the respective page independently using the known URL.
  • The RHRZ website is only accessible via the secure https protocol. This is indicated graphically in the address line of your browser (usually by a "padlock" symbol). Phishing websites usually only use 'http'.

Tips for protection against phishing e-mails:

Unfortunately, security cannot be fully automated, so every user is responsible for their own IT systems.

  • E-mail sender addresses are free text; fraudsters can enter any name and address here. A known sender address is no guarantee for a trustworthy sender.
  • Only click on a link in an e-mail if you are sure that the link is legitimate. Under no circumstances should you click on links that ask you to provide passwords, e-mail addresses or other personal information.
  • Note that just visiting a compromised website can result in malware being installed on your PC, smartphone or tablet. Your e-mail program should therefore not allow active content.
  • Phishing e-mails are often written in very poor German or English. Particularly noticeable are grammar errors, missing umlauts or character set errors. However, the wording of phishing e-mails is getting better and better.
  • If you accidentally disclose your password, please change it immediately so that it cannot be misused to your detriment.

Further information from the Federal Office for Information Security (BSI):