In System Administration:
Click the Mail Receiver icon.
Click Edit SOAP Mailboxes.
Click the icon next to the mailbox that you want to edit.
Make your changes. See Edit SOAP Mailbox.
Click Test to test the connection.
Click Save.
Click OK.
How do I configure SOAP mailboxes?
Can I limit the size of incoming messages?
How do I edit mail receiver parameters?
How do I edit mail sender parameters?