Hello Jørgen,
Thank you for kind words and your feedback.
MagicSpam is optimized to work on the SMTP and Pre-SMTP level and does not perform any content filtering. As such, MagicSpam currently does not offer the option of including the Subject line, or any other message content in the logs.
We have a development ticket for such feature; however, we do not have an estimate when this feature will become available.
To answer to your second question; MagicSpam works well with content filtering such as SpamAssassin and other. If you would like to add additional, content filtering layer of protection to your Spam protection, following URL might contain more information about additional content filtering addons:
https://www.mailenable.com/addons_Filtering.asp
Not having to do content filtering allows MagicSpam lower bandwidth and overhead, while customer who need additional layer of protection can incorporate additional content filters.
We hope this information helps.
Thank you again for your feedback.