MailCleaner Migration

ETH is migrating to a new mail filtering solution (MailCleaner). This is done one domain at a time and the domain is scheduled for

Tuesday, August 22nd 2017 at 10:00

What is New

The new filter is a commercial product and works slightly different from the previous solution.

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.

We recommend that you carefully check the quarantine report for falsely contained mails in the weeks after the migration.

Using the Quarantine Report

The quarantine report is actually a HTML mail 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
  • accept a newsletter subscription

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

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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