Before the new filter system, I used to have a rule setup to move all html/html alternative messages to another folder by check sender's email address against what I have in the address book, if the sender's email is not there, the message will be moved.

It goes something like this:
condition: if header contains "content-type:multipart/mixed",
action: check sender's email address against address book,
action: move to junk folder if email address is absent in the address book.

The new filter system simply are moving all multipart/mixed message to the junk folder without checking the addresses against my address book first.

Any way to tell the filter system to check for address first? Thanks.