?有domain 用sendmail 寄信失?...

我看maillog 看到 data format error...

Oct  9 10:45:19 dg_dev sendmail[6639]: f992jIp06647: to=billbill@netvigator.com, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=30051, relay=imsm032.netvigator.com. [208.167.231.26], dsn=5.6.0, stat=Data format error


how can i do?