How to stop Mail from creating Trash sub folder on Mac Studio running macOS Sonoma

jvdnieuwendijk wrote:

It's been years of having this issue unresolved; Every time I delete (remove/archive) an Email on a Mobile Device (iPhone, iPad)

using an 'Other Account' Email provider (not iCloud, Microsoft Exchange, Google, Gmail, Yahoo, Aol)

with IMAP properly setup -> the Mail app on Desktop (iMac, MacBook, Mac Studio) creates a Subfolder of Index named 'Trash'.

It would be great if this never happens again. I must have manually deleted/removed this folder hundreds of times now and I am losing my sense of humour about it.

https://discussions.apple.com/content/attachment/5ce4aca5-2817-42da-8edc-452d3227c2b1

Is this me, or is this happening to more Apple users?

What is your "Other"...?

Never have I heard this issue before... re: "It's been years of having this issue unresolved"

For problem accounts the go to way to sort things out is to delete the account(s) from the Mail.app, then add it back.

Remove email accounts in Mail on Mac

Remove email accounts in Mail on Mac - Apple Support

Add email accounts in Mail on Mac - Apple Support

Add email accounts in Mail on Mac - Apple Support

Note—

IMAP accounts stay on the server, so no local loss, when you re-sync

POP accounts download and remove from the server—therefor save your inbox/sent box if you want them

“On My Mac" is just that, local folders you created and moved mail into. So no loss

In Mail Settings, Accounts, select the account and the Server Settings.

Then, click on Advanced IMAP Settings button.

If it is being created as a subfolder of inbox, that would seem to be an IMAP path prefix issue. Normally, the path prefix in Mail should be blank.