How to delete all emails at once

[MikeSp]

At one time I could do that, but now it seems one swipe  (~8 emails) at a time is all that can be deleted at once. I have looked in settings but have not found that option.  Thanks

[mikeone]

Go to App settings ->  Message list, and change the settinh under "Select all"

... Select "All" means > Loaded messages

[MikeSp]

Thanks -- I had it set to  "Visible Messages" instead of "Loaded Messages"

[Kostya Vasilyev]

Yes, "Visible Messages" is the default.

To protect me from:

"Help, I just accidentally deleted dozens of VERY IMPORTANT messages, please BRING THEM BACK NOW!!!!!!!"

[Kerry]

Go to App settings ->  Message list, and change the setting under "Select all"

I've seen this answer several places but, the App Settings in my S6 doesn't have > Message List. No doubt I'm not understanding something. 

Got tip?

[StR]

You need to look in Aquamail settings, not in Android settings.
For most devices, there is a 3-dot icon. I remember that for some phone, possibly Samsung,  one was supposed to do something with one of the phone "soft buttons ": press or long press.

[mikeone]

... see screenshots below