How can I adjust the threshold/score at which mails are being tagged as spam?
If you use SpamAssassin in conjunction with "Exchange Server Toolbox" or "SmartPOP2Exchange", the Configured Score in "Exchange Server Toolbox" or "SmartPOP2Exchange" Rule-Condition usually determines how a scanned email should be handled.
If you use "SpamAssassin in a Box" alone, proceed as follows:
The threshold can be configured in the configuration "C:\ProgramData\JAM Software\spamdService\sa-config". Please open the text file with an appropriate text editor and search for the following line:
# required_score 5.0
Remove the comment sign (#) in front of the line and adjust the score to the desired value. Please note that any changes in the configuration files in the configuration directory will require a restart of the SpamAssassin daemon in order to take effect.