Spam is the most common form of unwanted email. It is annoying and can be sent in large quantities. They can fill your inbox with unrequested emails, typically, but not always, with a malicious intent. The identity of the sender is anonymous and there is no option to stop receiving future emails.


The SPAM filtering system tags email it identifies as SPAM. A tag is a text label that will be attached to the beginning of the subject line of a message that the system has identified as SPAM. You will still receive the email, but the tag will allow you to act upon it in an automatic manner.

For example, here is the subject line of SPAM email…
Can you stay thin by sleeping more?

If this email was identified as Spam in the filter it would appear like this instead…
[UCA-SPAM] Can you stay thin by sleeping more?

You can then use your client filtering rules to automatically act on messages with the [UCA-SPAM] tag. Below are instructions on how to set up such a rule. Since the final disposition of the SPAM message is determined by your own rule, you can dispose of it immediately, filter it to your junk mail folder for later review, or do nothing with it at all.

Set up a filtering rule for the [UCA-SPAM] tag using the Windows client
Set up a filtering rule for the [UCA-SPAM] tag using the Web interface client.

The filtering system also checks a blacklist of known spammer domains and drops messages from these senders. The blacklist is maintained by a third party service and is constantly updated.