MailWasher Server uses a combination of filtering techniques to ensure that messages are processed as accurately as possible. The filtering techniques used are:
| • | Individual and global address whitelist |
| • | Individual and global address blacklist |
| • | FirstAlert! real-time known spam database |
| • | IP-based real-time blackhole lists (RBLs) |
| • | Domain-based real-time blackhole lists (RBLs) |
| • | Statistical content analysis |
The diagram below illustrates the MailWasher Server message filtering process.
For more information about MailWasher Server's filtering techniques, see: