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SPAM is a common denomination for "unsolicited email". Check Wikipedia for a thorough discussion of the topic.

No Filtering for Spam

Jacobs University is not filtering your emails for spam, especially to not violate §303a StGB Datenveränderung. Also, judging information for it's content value is very subjective and differs widely.

(tick) You have to configure Jacobs Email spam filtering for yourself, and hence also take the responsibility for dropped emails.

Obligation for Protection

In contrast, based on the explicit requirements of §109 TKG Technische Schutzmaßnahmen to prevent Jacobs University users' data and the technical systems from harm, Jacobs University does filter emails automatically identified as virus and other malware.

(warning) Please mind the significant difference between spam and malware!

(thumbs up) Jacobs University runs SPAM tagging and MALWARE filtering software on the Jacobs University Email server.

(info) The spam tagging software in use is Spam Assassin and also Microsoft Forefront Security.

You may filter your Jacobs Email depending on the classification already made by the spam tagging software.

In Microsoft Outlook Email Client

There is a website with excellent documentation on how to configure Microsoft Outlook 2000 for rule-based pre-sorting of SPAM-positve tagged emails at

Via Web Interface on Email Server

You can also create filters directly on the Jacobs Email server using the web frontend.

  • Browse to,
  • login with your Jacobs account,
  • click on "Tools" -> "Rules" -> "New Rule" -> "Create a new rule for arriving messages",
  • select "If the message includes specific words in the message header",
  • enter "X-Spam-Flag: YES" as header to look for,
  • specify an action, e.g. "Move, copy, or delete", fill the details according to your need.

(thumbs down) This unfortunately currently only works with Internet Explorer.

Fine Tuning Rules

The spam tagging server puts two filterable headers into the email:

  • X-Spam-Flag:, if the email is supposed to be spam, and
  • X-Spam-Level: with a number of stars as rest of the email header line.

The X-Spam-Level: stars give an indication of the numerical probability of the email being spam. The more stars follow, the higher the calculated probability, to a maximum of five stars.

(info) The header X-Spam-Flag: YES is equivalent to X-Spam-Level: *****.

A rule filtering for X-Spam-Level: ***** would filter only emails with a very high probability of being spam. You would loose only very few emails, but would see a lot of spam.

A rule filtering for X-Spam-Level: * would filter any email with the slightest probably of being spam. You would see only very few spam, but you would also loose a lot of emails not being spam.

(lightbulb) The decision how many spam to filter and how many emails to loose is yours!

You may fine-tune the filter rule by adding stars as appropriate for your email habits.