How about adding to the rules: "Move to folder after read"?

1

Once I read a message from some individuals, it would be useful to have the message automatically moved to a specific folder.

2

It would make life much easier if I could read all new mail,from all inboxes and then move them via a rule to a specified folder, either manually or automatically, once the message has been read.

3

I’d even settle for a drop down menu (like Junk Mail) that would allow me to move it to recently used folders.

4

Recently used folders is good, Thunderbird had that, although it was buried in a context menu.

5

This is not possible, because rules work only for unread messages.

Jan

6

There is no practical reason that another trigger couldn’t be added to the code that initiated the rules to run based on a period of time after mail was read. IMHO

7

Reason is that it is not technically possible, otherwise it would be already implemented.
Unread status is working as infinite loop preventer.

Jan