There are several spam filters which try to detect spam. They work in a row and each of them may cause 'false positives' (mail detected as spam but is not spam). A typical row:
- Spam filter at the UZH mail server. Marked with '**-SPAM-**
- Spam filter in Zimbra (Math Departement). Marked with '#SPAMz#'
- Spam filter in the personal email program. Typical 'marked as spam'
Junk Folder
Typically, all mail which is marked as spam by the UZH mail server (1) will be moved directly to the Junk folder. This happens through a so called 'sieve' filter on our mailserver.
Mails, who are detected as spam by Zimbra, are moved directly to the Junk folder too.
false positives
Every Spam filter needs training from time to time.
- The UZH mail filter will be maintained by the compute center and you have no direct impact to it. You are able to adjust a 'score' which is responsible to mark a mail as junk. In general this is not necessary.
The zimbra mail filter can be taught in the webinterface unter http://mail.math.uzh.ch.
select all mails which are junk and press Junk.
False positives: mark all of them and press not Junk.