The QIL database is highly dynamic; IP addresses are added as soon we observe them to be involved in the sending of spam. This database is continuously being updated with IP addresses being added and removed as their behavior warrants. Decisions to add or remove an IP are based a combination of history and current spamming activity.

If your address is on the QIL database, you should check your computer for signs of unauthorized activity. If you are running a Windows-based PC, it is highly probable that your computer has been compromised by a virus or spyware application. Running an anti-virus program is certainly a good first step, but not all compromises are found even by the best anti-virus programs - you may need to contact an expert. If you are running a web server, check for other unauthorized activities, such as exploitable scripts and PHP software.

You may, of course, request removal of the address from the QIL database, but be aware that it may be placed back on the database if additional spam is sent. To prevent abuse we limit the number of removal requests in a given period.