The .pdf file titled Sending and Bounce rules.pdf has sample images obscuring the text and it makes it difficult if not impossible to read. See attached screenshot of just one example.
Hello @pancakehollow and thanks for reporting this. We are aware of this bad formation when downloading a manual page. This is a problem with the software used for this manual (Bookstack). This has already been reported on their GitHub repo.
Oh, and thanks for having a look on the manual
Thank you appreciate the feedback and update. Keep up the great work!