I've installed OTRS in my company and the incoming e-mails get deleted after they're fetched. Is there a way to prevent that from happening?
 
In my system I created 2 mailboxes. Main one and backup one. OTRS is fetching mails only from first one. At the same time all emails coming to main account are forwarded [and not deleted] to the second one to have a copy.
 
Best regards,
 
Maciej