I bet those of you, who use Opera on multiple computers, will like this one. If you are using Opera’s superior mail client, M2, and don’t have any mail filters there, you’ll need to create one. You can find out how to do it in our previous post here: http://is.gd/3e8vQ. I am going to show how to synchronize already created Today smart filter, that displays e-mails, received today. Enter opera:abou