Connection Filtering

Server Black Lists
Server level DNS black lists compare e-mail messages against spam databases to determine whether the messages are spam. Black lists must be configured for the server before they can be used by a host.

Host Black Lists
Host level DNS black lists are server black lists that have been enabled for a host. If a black list is not configured for the server, it cannot be used by a host.

Content Filtering

Phrase Filtering
Phrase filtering searches for configurable spam phrases within the body of an e-mail to determine whether a message is spam.

Statistical Filtering
Statistical filtering compares each word in the body of an e-mail with statistical word tables to determine whether the message is spam.

White List
The white list contains e-mail addresses and domains from which mail is always accepted. Messages that originate from one of the addresses or domains entered in this file are processed immediately without going through content filtering or phrase filtering.

Checked> Content Filtering for Authenticated Users

Trusted IP Addresses

Trusted IP List
"Trusted IP Addresses" are IP addresses and ranges that you trust not to send spam. Messages that originate from one of the addresses entered on this page are processed immediately without going through any of the spam checks.