I trust you have installed Pegasus Mail in C:\PMAIL and NOT c:\program files directory tree. The latter has read/write access set to Read Only, and that is only bypassed when software is installed.  Rules are normally set up in its NewMail directory (ie: c:\pmail\mail\admin). 

Martin

I have experienced a mildly frustrating 'glitch' with the mail filtering part of the program.  It will only recognize a few filtering rules and process them, also I can no long edit or add new rules. Thoughts?  Current version running under Win10

thanks.

Ralph B.