Mac OSX Mail - Read emails showing as Unread when launched

[pine man]

I am going to stick with Spark. It does everything I want it to do and, at the moment, better than Apple Mail.

There was one query I had about Spark and that was how to set it to empty Trash when closed down. An email to Spark support was replied to very quickly indeed, informing me that facility was not yet available but is being considered for future updates.

So it works well and support is great