abuse@kornet.net is refusing our complains this is worse !
Sep 17 15:33:59 newtunix postfix/smtp[8838]: 79CD11EC8031: to=<abuse@kornet.net>, relay=mx.kornet.net[211.48.62.135]:25, delay=19565, delays=19559/6.2/0.71/0, dsn=4.3.2, status=deferred (host mx.kornet.net[211.48.62.135] refused to talk to me: 421 4.3.2 421 Your ip is filtered by RBL(http://cbl.abuseat.org)(IP:62.67.240.20)(Caues:'www.kisarbl.or.kr'))
Sep 17 15:33:59 newtunix postfix/smtp[8845]: 21425EAC3CF: to=<abuse@kornet.net>, relay=mx.kornet.net[211.48.62.135]:25, delay=96886, delays=96885/0.1/0.73/0, dsn=4.3.2, status=deferred (host mx.kornet.net[211.48.62.135] refused to talk to me: 421 4.3.2 421 Your ip is filtered by RBL(http://cbl.abuseat.org)(IP:62.67.240.20)(Caues:'www.kisarbl.or.kr'))