Email doesn't work

I don't know what I'm doing wrong. A couple of months ago the automatic email reply worked just fine on all of my forms, now none of them sends emails upon submission anymore. Already tried changing a few things but no luck. 

Hello eliendg,

I checked your email address and it is listed in our bounce list. It is removed now, please check and let us know if issue still persists. Also you might want to look these guides for avoiding same issue again:

- How to Prevent Email Bouncing Related Issues

- How to Remove Your Email Address from Bounce List

If you need any further assistance please feel free to contact us again.

Thanks.