Anti-Virus and Anti-SPAM features

Anti-Virus features

Any message sent from or delivered to U-mail or Groupwise will automatically be scanned for the presence of known viruses. While the virus detection files are updated daily, it is important that you understand that this does not eliminate the need for you to have a virus detection program on your computer. Desktop anti-virus software provides another line of defense as well as scanning for viruses in files obtained other than through U-mail, e.g. downloaded from the Internet.

How does the anti-virus software work?
Incoming and outgoing messages are scanned by an anti-virus appliance. If no known viruses are detected, the message is delivered as normal. If a virus is detected, the appliance attempts to clean the attachment. If it is able to clean the attachment, the message is delivered. If it is not successful, the attachment is deleted and the message is delivered without the attachment.

FAQ
Will someone at ITSS be reading my e-mail?
No, this process is automated using software not human eyes.

If an attachment is deleted, can I get it back?
No. You could contact the original sender and request that they check their computer for viruses and then try resending the file.

Will all attachments be scanned or only certain file extensions?
All attachments will be scanned.


Anti-SPAM features

Many of us have experienced the frustration of receiving unsolicited messages, referred to as SPAM. ITSS utilizes a SPAM appliance that will label e-mail as potentially unsolicited so you can filter this e-mail to a folder other than your Inbox or even directly to the trash.

How does this work?
ITSS uses a spam filter for e-mail messages sent/received by its U-mail and GroupWise servers. Each message is assigned a score indicating the probability that it is spam (mail header e.g. X-Proofpoint-Spam-Details: rule=test_probablespam policy=test score=0). Messages that receive a score between 0-39 are delivered as normal. Messages that receive a score between 40 -79 have a "{SPAM???} spamscore=[nn]" label placed at the beginning of the Subject: field. Messages that receive a score of 80 and higher are considered definitely SPAM and are deleted.

The spam label or score may be used to create a filter, or rule, to move the matching messages to a “junk” mailbox or even the trash. When creating a new filter, especially if deleting the message, it is a good idea to test the filter to be sure that you aren't inadvertently deleting legitmate messages. You can either move the filtered messages to a different folder or be sure to review the contents of the trash before you empty it.


U-mail Web Access does not have filtering but you may sort your messages by clicking the column heading "Subject". This will sort the messages alphabetically and the {SPAM???} messages will be grouped together. To re-sort by date (the default), click the Received column heading or log out.

Eudora does have filtering. To create a filter, choose Filter from the Tools menu. Click New and build the filter as follows:
Match: Select the checkbox for Incoming
Header: Click the drop down box and choose Subject:
Contains: enter the text to filter on, e.g. {SPAM???}
Action: Click the drop down box and choose "Transfer to", choose a folder (e.g. trash or junk) if the folder is listed. To create a new folder, click New and enter the name of the folder (e.g. junk) and click OK.
Close the window, you will be prompted to save changes, choose Yes.
New messages with {SPAM???} in the subject will now go to the folder specified (e.g. junk), you should check through the messages and delete as appropriate.

Outlook Express: If you have IMAP as the protocol, OE does not filter, you can sort messages by clicking the Subject column heading. If you are using OE set for POP you may filter by using the following:

Click the Tools menu, choose Message Rules, then Mail. Choose to create a New Mail Rule and build the rule as follows:
1. Select Conditions for your Rule:
Check "Where the Subject line contains specific words". The rule displays in text box #3 - click the underlined words and replace with the text to filter on, e.g. {SPAM???}. Click Add, then OK.
2. Select the Actions for your rule:
Check either "Delete It" or "Move it to the specified folder". If you choose to move it, the parameters will be added to the rule in text box #3, click the underlined word and choose the folder to move the messages to, or click New Folder to create a "junk" folder. Enter the name and click OK.
#4 Enter a name for the rule.
Click OK.
You will be prompted to Apply Now, then click OK.


Information Technology Systems & Services Help Center
itss.help@mail.und.nodak.edu