How do I empty the recycle bin on my Galaxy S6

[AC Question]

I have about 20,000 e-mails in each of 3 accounts' recycle bins on my galaxy S6. When I try to 'delete all' from the dropdown menu on the top right of the recyle bin, it says it's deleting and whirls around for a while but does not delete. It is really frustrating. How do I empty the bin????????

 

[Almeuit]

I would log into your email account on your PC and remove them so it can sync to the device. 20k emails may be too many for the app to handle.