1329: DDOS on Science mailservers
Our smtp mailservers were under attack. In order to prevemt other problems, our configuration limits the number of connections that can be kept open at the same time. We cannot easily distinguish between connections by the attacker(s) and by regular users. When this limit is reached, no new connections can be made. Therefore sending e-mail using our mailservers can take a long time or will not work at all. There’s a good chance that your IP address will be blocked (max....