May  6 13:48:23 ns sendmail[16366]: NAA16366: SYSERR(root): collect: I/O error on connection from [211.48.22.251], fr
om=<mailmaster at exnet.co.kr>: Connection reset by [211.48.22.251] May  6 14:21:28 ns sendmail[16376]: OAA16376: SYSERR(r
oot): collect: I/O error on connection from [211.48.22.251], from=<mailmaster at exnet.co.kr>: Connection reset by [211.48.
22.251] May  9 23:32:16 ns sendmail[21439]: XAA21439: SYSERR(root): collect: I/O error on connection from [211.48.22.25
1], from=<mailmaster at exnet.co.kr>: Connection reset by [211.48.22.251] May 28 18:37:21 ns sendmail[21200]: SAA21200: SYS
ERR(root): collect: I/O error on connection from [210.127.198.2], from=<jwhuh at dwchem.co.kr>: Connection reset by [210.12
7.198.2] May 28 18:52:16 ns sendmail[21231]: SAA21231: SYSERR(root): collect: I/O error on connection from [210.127.198.
2], from=<jwhuh at dwchem.co.kr>: Connection reset by [210.127.198.2] May 29 02:24:39 ns sendmail[21624]: NOQUEUE: SYSERR:
putoutmsg ([203.246.255.139]): error on output channel sending "220 ns.kyuh.co.kr ESMTP Sendmail 8.9.3+Sun/8.9.3; Tue, 2
9 May 2001 02:24:39 +0900 (KST)": Broken pipe Jun  1 09:02:02 ns sendmail[28563]: JAA28563: SYSERR: putoutmsg ([64.40.3
7.15]): error on output channel sending "451 <administrator at erotica-mail.com>... Sender domain must resolve": Broken pip
e Jun  2 05:20:38 ns sendmail[139]: FAA00139: SYSERR(root): collect: I/O error on connection from [211.175.255.5], from
=<webmaster at wisebook.com>: Connection reset by [211.175.255.5]--kims...