Ok this solution with trigger is quite great but the problem is that some unread mail got status 18496 or 2048 or even 51264 and for all them the blue circle don't work. I checked with my gmail account in which everything is ok the unread mail status there is set to 2049. So the best solution would be to change all of that codes to 2049 or 18497 but the question is why unread messages have different status codes. If we change them I suppose we loose some maybe quite important information. So if anyone could found a description of status codes in fenix mail it would be great help and possible lead to solving this problem.