We are currently unable to add a new email account (mail channel) in Zammad.
Zammad is installed via Docker.
When we try to create a new channel using rails r, we get the following message:
“The provided email account is already in use.”
However, we cannot find this email account anywhere in the dashboard or the UI—it’s not visible or listed under channels.
What can we do to either locate the existing email channel or properly remove it so we can re-add it?