Can you clear old emails all at once on an iPhone 6 plus?

Hello!

If using the Apple Mail app, no. There is currently not a select all and delete as there is for the spam/junk and trash folder. However, you can click on Edit at the top and select multiple emails to delete as seen here: HT208661

Product feedback: apple.com/feedback 

You can still delete all the mail in your trash folder.

You can’t delete all in the inbox.

I used to be able to delete all my trash email mail (iPhone/iPad email) with one touch, now since the iOS 12.4.2 update I can’t.

very frustrating to say the least.

Luana