I don't know whether your adminmessages have something in common like a unique from address. In that case you could filter on that. Another option would be to alter your templates (either your account templates or your folder templates for that specific folder) to include the macro: %Comment="%FolderName"%- That way you can filter on a Comment header containing the folder name.
You might consider filtering both incomin and outgoing admin messages to the same folder, that way you can display them threaded and you'll have questions and answers grouped together.
__________________________________ I'm just a user of The Bat! I don't work for Ritlabs.
Another option would be to alter your templates (either your account templates or your folder templates for that specific folder) to include the macro: %Comment="%FolderName"%- That way you can filter on a Comment header containing the folder name.
First - header 'comment' should be for comments, so we need to create a new header (see Message Headers in Preferences), called X-Folder. We must to check option 'Allow to edit this field in the Message Editor'.
Now we should use a macro %FOLDERFULLNAME (introduced in 3.81.14). There is one trap - some folders in The Bat have a 'displayed' name and 'internal' name, macro catches a displayed name but to move a message in filter operation TB uses 'internal'. In English 'Sent Mail' is 'Sent', Quarantine is $qrntn$ and so on. In other languages there is always 8 folders to change. I've created a simple template 'foldername' http://konrad_sz.republika.pl/tb/files/foldername.txt with English, Polish and German versions. Download and install.
Now we can use this template(called 'foldername' - see %QINCLUDE macro). In templates for accounts (or folders, or in address book) for a new messages and replies we must to add a macro
Now in headers of created messages should be a patch to folder.
KS, thanks for your suggestions. They are too much for me but they did help me better understand that I can use the %SetHeader macro, which I did as follows:
Under folder properties, I included the following in the reply template: %SetHeader("Comments","Admin")
I then set up an outgoing filter where the Header Field "Comments" contains "Admin" to move the message to the Admin/Sent folder. Unfortunately, the filter is not working. I can see that the comments' field does contain Admin, but the filter it not catching it.