How can I delete the emails from my trash folder on the email app on my phone

[Android Central Question]

I have a galaxy s5 and my deleted files from my inbox are in my trash folder (18k). Howeverwhen I click on the trash fokder the message says "no emails, you may have emails not yet retrieved from the server.

 

[Rukbat]

If it's a GMail account, go to GMail and clean your email up there. If it's some other provider, go to their webmail page. (IMAP email service allows you to delete emails on the phone while still leaving the on the server. It's designed for use when you have more than one device you're using to read emails with [say a phone ans a laptop].)