Hi, I think each different email site has its own techniques for emptying the trash. It's also possible that it takes time, so once you start the process, you might check back on it in 10 minutes.

If there is a particular webmail you have questions about, which one do you use? For example, Outlook, Gmail, Yahoo, or something else.

Thank-you for responding to my question! I use something called "webmail", which is part of the internet package from my phone company. My browser is Mozilla Firefox.

Hmm, maybe your phone company has a help page that could explain why it isn't working or provide another option.