Information about spam

Things to know about Spam (Junk)

Spam or junk e-mails are generally defined as unsolicited and automatically sent e-mails that are usually sent for commercial reasons to users of e-mail accounts without their consent.
This is not only a phenomenon that affects the HTW, but a problem in the media landscape of the Internet, which has an enormous global dimension. 98 percent of the worldwide e-mail traffic is caused by the sending of spam e-mails. However, the team at the University Data Center is making every effort to minimize the impact on users of the HTW's e-mail service.

Measures against spam and viruses

To keep your inbox free of unwanted spam and viruses, the eXpurgate filter from cyren is used in addition to an IP-based automatic blacklist. On the company's website you will also find detailed information on how the filter works, in particular why misinterpretations of what are actually "good" e-mails occur only very rarely.

How the filter works: Every e-mail is checked by the server of the HTW for suspected spam and viruses. A short checksum of the e-mail content is generated and compared with a database of the company cyren. By this it can be determined whether the e-mail has already been classified as spam. At no time will mail contents be transferred to third parties!

Procedure for detected unwanted e-mails

  • Mails from servers that have sent spam in the last 7 days are immediately rejected
  • messages detected as spam or virus are rejected
  • all outgoing messages are marked so that invalid error notifications can be detected and rejected