qmail 无法发邮件

sainker

公司qmail无法发邮件，问下高手怎么解决？
/var/log/qmail/current

@400000004e5c8f740671680c status: local 0/10 remote 3/20
@400000004e5c8f740672a08c end msg 66503558
@400000004e5c8fc40ef89a7c new msg 66503558
@400000004e5c8fc40ef93aa4 info msg 66503558: bytes 3210 from <yingfeng.lan@newslake.com> qp 27023 uid 89
@400000004e5c8fc40f21b204 starting delivery 6: msg 66503558 to remote lanyf@china.org.cn
@400000004e5c8fc40f21c58c status: local 0/10 remote 4/20
@400000004e5c9098386d945c delivery 1: deferral: Connected_to_210.72.21.22_but_connection_died._(#4.4.2)/
@400000004e5c9098386dafb4 status: local 0/10 remote 3/20
@400000004e5c9098386e6b34 starting delivery 7: msg 66503550 to remote lanyf@china.org.cn
@400000004e5c9098386e7ebc status: local 0/10 remote 4/20

/var/log/qmail/smtpd/current
@400000004e5c803f0444d3ac CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <lanyf@china.org.cn> : client allowed to relay
@400000004e5c803f060d56dc CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <lanyf@tom.com> : client allowed to relay
@400000004e5c803f0828b4fc CHKUSER rejected rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <yingfeng.lan@chinay.com> : not existing recipient
@400000004e5c804318bea204 tcpserver: end 26194 status 0@400000004e5c804318bea9d4 tcpserver: status: 0/20
@400000004e5c83f3171946d4 tcpserver: status: 0/20
@400000004e5c843406cad2ac tcpserver: status: 1/20
@400000004e5c843406cd37f4 tcpserver: pid 26363 from 180.168.181.230
@400000004e5c843406ce31f4 tcpserver: ok 26363 0:223.202.5.65:25 :180.168.181.230::4913
@400000004e5c843411fa0b0c CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <lanyf@china.org.cn> : client allowed to relay@400000004e5c8436391f0624 tcpserver: end 26363 status 0
@400000004e5c8436391f0a0c tcpserver: status: 0/20
@400000004e5c86e531dcabdc tcpserver: status: 0/20
@400000004e5c873839623d2c tcpserver: status: 1/20
@400000004e5c873839643514 tcpserver: pid 26590 from 180.168.181.230
@400000004e5c8738396513bc tcpserver: ok 26590 0:223.202.5.65:25 :180.168.181.230::1098
@400000004e5c8739093f87e4 CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <lanyf@china.org.cn> : client allowed to relay
@400000004e5c873b32ddfaf4 tcpserver: end 26590 status 0
@400000004e5c873b32de02c4 tcpserver: status: 0/20
@400000004e5c898021315a44 tcpserver: status: 0/20
@400000004e5c89993b5ea584 tcpserver: status: 0/20
@400000004e5c8a5d1c0414bc tcpserver: status: 1/20
@400000004e5c8a5d1c06cff4 tcpserver: pid 26895 from 180.168.181.230
@400000004e5c8a5d1c07aab4 tcpserver: ok 26895 0:223.202.5.65:25 :180.168.181.230::1286
@400000004e5c8a5d2ba62414 CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <lanyf@china.org.cn> : client allowed to relay
@400000004e5c8a6025752644 tcpserver: end 26895 status 0
@400000004e5c8a6025752a2c tcpserver: status: 0/20
@400000004e5c8bee3420f68c tcpserver: status: 1/20
@400000004e5c8bee34239e3c tcpserver: pid 26954 from 180.168.181.230
@400000004e5c8bee34248c84 tcpserver: ok 26954 0:223.202.5.65:25 :180.168.181.230::1322
@400000004e5c8bef07636d14 CHKUSER relaying rcpt: from <yingfeng.lan@newslake.com:yingfeng.lan@newslake.com:> remote <EE13BC4E6832450:unknown:180.168.181.230> rcpt <saink.yu@tom.com> : client allowed to relay