Primary & Other boxes keep showing RED

[dgomersall]

there were 2 email addresses and I cancelled the lower address on the right hand screen.
Since this I now get 2 RED boxes along the top toolbar Primary and Other.
They disappear when I check the unread email box?
How do I stop this please.

[Gary]

That is the number of recent messages that have been received since the last time you were in that tab.

The option to disable it is in Menu > Settings > Mail > Categories.