So, the problem should be fixed! The abused server hat a weak security level because it was intentionally used only for internal mailing. The security problems should be fixed now, nobody will receive spam via the server! Will the server be removed from the black list automatically after 48 spam-free-hours? If not, where should we write an email to? Thanks for your help!
Could you please unblock our server with ip 18.104.22.168 from your blacklist! We do not know why we are blacklisted - a virus-check on our system showed no infection! We are a academical institution and are really dependent on our mailserver! Thank you!