Skip to Navigation | Skip to Content

Firewall logoCalvin's Spam Firewall: Overview

Objectives for a Spam Firewall

How does the Firewall work?

What can I expect from the default settings?

Customization

Objectives for a Spam Firewall
When we researched the various spam firewall products we looked for a product that would:

  1. Reduce a sufficient percentage of spam coming into e-mail inboxes.
  2. Not block any legitimate messages.
  3. Work without requiring user action.
  4. Allow users to set personal settings.

go to top

How does the Firewall work?

It checks e-mail messages coming to @calvin.edu mailboxes for:

  • Known spammers
  • Viruses
  • Attachments such as bat, cmd, com, cpl, exe, dif, scr, vbs
  • Content matching known characteristics of spammers and phishers
  • Fake senders

If it passes those checks, it is assigned a spam score. What happens to the message is then determined by:

  • Your personal settings
  • The system defaults

go to top

What can I expect from the default settings?

  • Considerably less spam in your inbox, but some amount
  • Less than 15 minutes a day spent managing spam
  • The option of using Junk Mail Handling under GroupWise or similar features under other e-mail programs
    • Use caution when adding these features, as you may inadvertently block important messages

go to top

Customization

  • You must customize per e-mail address or alias
  • You can use the defaults or set your own scores for:
    • Spam scoring
    • Block scoring
    • Quarantine scoring
  • You can create your own whitelist/blacklist

go to top