Filters
The Exchange server is protected by multiple filters to avoid viruses, junk and phishing mails.
SPAM Filter
All SPAM mails and other junk such as unwanted newsletters are filtered. More information can be found
here.
Virus and Attachment Filter
All incoming mails are checked for viruses. If any suspicious attachments are found they are replaced with a warning text file containing:
Der Virenfilter hat eine Anlage mit dem Namen ... aus dieser Nachricht
entfernt, da diese bösartigen Code enthält und somit ein Sicherheitsrisiko darstellt. Wenn
die Datei fälschlicherweise entfernt wurde und Sie diese benötigen, wenden Sie sich bitte an
den Absender um die Datei über einen anderen Kanal zu erhalten.
The virus filter has removed an attachment named ... from this message, as
it constituted a security hazard. If the file has been removed in error and you need this,
please contact the sender to receive the file via a different channel
The detailed criteria when an attachment is blocked are documented by
ITS here.

Mails sent among users on the ETH Exchange server directly are not subject to the virus check.
Phishtrap
All incoming mails that suspiciously look like phishing mails are automatically sorted into a special mail queue. This queue is only checked periodically during office hours by
ITS staff. Regular mails are manually released.

Mails sent among users on the ETH Exchange server directly are not subject to the phishing mail check.
Links