We will soon be providing an additional system for spam and virus filtering. We have always provided email services for our hosting customers. Soon we will also be providing an optional cloud-based spam and virus filtering system provided by Spamexperts. We are in the final stages of testing this solution. It's easy to install, and will be very low-priced. We do spam filtering currently on all of our email accounts using some very good open source filtering solutions (note that these ONLY apply to email addresses that have mailboxes on our serverrs - we do not spam filter email that is just passing through an alias on your domain).
The new cloud-based Spamexperts service scans your email before it reaches our servers and will therefore filter ALL email for your domain, whether it is delivered to a mailbox or forwarded through to a different domain.
There are quite a few differences between the two spam filtering systems -- we will write more about it before it becomes available to our customers.