accidentally deleted all my emails

I had about 4k emails. I know, I know. I was in the process of going thru them. so many are trash but i was getting thru them. Somehow i deleted all of them. They show them in the trash. Is there a way to recover ALL OF THEM at once back to my inbox??? The way I am trying and what i seen shown in the help section does about 50 at a time. I want to just send the whole trash bin back to my inbox. Thanks very much