Your mail server comes with built-in spam filtering, which you can adjust to suit your needs. The filtering is provided by SpamAssassin, one of the leading spam filters available, and you can use it as your sole spam filter, or use it in conjunction with additional software you may have installed on your own computer (such as Norton, McAfee, Kaspersky, etc.).

You can configure the spam settings on your mail server for each mail account individually, or for all of the mailboxes on your domain. To adjust the settings for your all of your domain mailboxes, you will need the administration e-mail address and password sent to you when you set up your hosting. If you cannot find this login, please contact us.

Either procedure is nearly identical, so I'll walk through the steps for adjusting your site-wide settings, which will apply to all of your mailboxes.

1. First, navigate your browser to to your mail server. The address was provided when you signed up, and looks like: http://webmail.your-domain-name.com
2. Log in using your administration e-mail address and password.
3. Once logged in, you may be asked for your time zone settings if this is your first visit. Choose the appropriate time zone.
4. Once you are on the mail e-mail screen, click the "Settings" icon at the top of the page.
5. In the left menu, expand the Domain Settings item if necessary, and click on Spam Filtering. (If you are changing settings for a single user, expand the Filtering item in the left menu to find the Spam Filtering menu item).
6. The Spam Filtering section has three tabs, labeled Options, Actions and Trusted Senders. Beginning with the first tab, choose the item labeled "Override spam settings for this domain" and then click the Save button just above.
7. Next, click the Actions tab to adjust your spam filter settings. You will see a long list of options which can be adjusted, but I would recommend leaving them alone unless you know exactly what each means and what effect the change will have on your e-mail. Too high of a setting can result on many legitimate e-mails to you being classified as spam. Turn your attention instead to the three items at the bottom of this page marked Low, Medium and High Probability of Being Spam. (If you are adjusting settings for a single account, these three items will be the only items that appear).
   1. Leave the Low Probability as is - it normally will have a weight of 10, with No Action selected.
   2. Change the Medium action to "Add Text to Subject". This will add a note to the subject line of all suspected incoming mail that meets the Medium threshold, which will allow you to spot possible spam in your inbox much more easily.
   3. Change the High action to "Delete Message". This is the key one, as the vast majority of your spam will have a weight of greater than 30. Having the server delete those messages as they come in will spare your inbox (and you) the trouble of dealing with them individually.
8. Before leaving this screen, be sure to click the Save button at the top of the page.

You are now protected! These settings should deal with 50% - 90% of your spam problem, depending on who is sending spam to you. Many messages will still make it through these filters - no system is infallible since they have to find a balance between protecting you from spam while still allowing legitimate messages through. If you do not use anti-spam software on your own computer, you should look into installing some as a compliment to the server settings you have just updated. Kaspersky is the one I favor at the moment, but McAfee is also very good. Norton 360 (2010) is a little memory-intensive and will slow your computer down. There are many others out there, and PC Magazine online is a good place to begin looking for the best rated software in any given year (HINT: Pay more attention to reader reviews than to editor reviews).