SPAM Filter

All SPAM mails or otherwise suspicions mails are kept for 30 days in a personal quarantine. You can view the quarantine in the MailCleaner Management Center ( You will also receive a daily quarantine report listing all new mails kept in quarantine.

Using the Quarantine Report

The quarantine report is actually a HTML mail coming from containing links for the individual actions and a direct login to the Management Center without password authentication. You can do the following actions for a kept mail by clicking on icons and buttons in the mail:

  • request a filter adjustment for non-SPAM mails
  • preview the message
  • release the message

If you see a newsletter that you want to receive in the report, you can permanently accept it in the Management Center .

Do not forward the quarantine report to other people. The quarantine report grants direct access without a login to your quarantine.


You can modify various preferences in the Management Center:

  • language
  • mail delivery options
  • quarantine report delivery options
  • white, warn and black list

If you get several reports per day for the individual mail addresses of your account, you may want to deliver all reports to one address. This will bundle them into one mail.

The email Spamfilter utility of will no longer be used to set filtering preferences. Your previous filter settings are also not imported in MailCleaner.

Reporting SPAM, False Positives and Phishing Mails

You can help improving the quality of the filter by reporting falsly classified mails:

  • False positives (mail caught in the quarantine but that is not SPAM) can be reported by clicking on the filter adjustment icon in the quarantine report or the quarantine.

  • False negatives (mail that is SPAM but got through) can be reported by sending the respective mail as attachment to

  • Phishing mails that got through MailCleaner should be reported by sending the respective mail as attachment to


ITS provides documentation in their service catalogue entry for mail filtering in the section Instructions / FAQ / How To:

If you have questions or problems with MailCleaner please contact our service desk.

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