General information about handling spam / marking by header

All email entering the campus will be scanned for spam and viruses/malware. Mail found to contain known malware will be discarded. Mail suspected to be spam will be handled according to recipient.

Users with @uni-koeln.de und @smail.uni-koeln.de can choose whether such mail will be discarded, marked in subject or delivered unchanged.

All mail showing signs of spam will be marked to allow for individual filtering (using your own mail client for example). These marks will be present in mail going to recipients addresses like @xyz.uni-koeln.de and @uk-koeln.de as well.

Information about spam in headers of mails

X-Uzk-Spam: POSITIVE -- Mail is most likely spam. If you choose drop or mark in our Mailportal, they will be treated accordingly.

X-UzK-Spam: SUSPECT -- Mail shows some signs of spam. It is not recommended to automatically discard mail on this criteria alone.