Removing VERP Feature

Your software
My Mautic version is: 4.4.3
My PHP version is: 7.4.29
My Database type and version is: 10.2.44-MariaDB

Your problem
My problem is: What must one do to turn VERP off? In the past, when sending out an e-mail, all the bounces will be found in the Inbox of the mailbox. I will then download the bounces via Thunderbird and manually mark the e-mails with: Do Not Contact in Mautic. It worked OK for me. Recently, I have configured Mautic to check the Inbox for the mailbox.

What I now noticed, which was not there before, is that each bounced e-mail will have a form similar to and a folder will be created using the local part of the bounced e-mail, namely: bounces+bounce_6305e88e52d5b481370187

Thus, if there are 50 bounces, then there are 50 folders. Nothing goes into the Inbox for the custom return path which is

How can I return to the state where bounced e-mails are delivered to the Inbox of the bounced e-mail address?

These errors are showing in the log:

Steps I have tried to fix the problem: