标题: 504 Need to authenticate first [打印本页] 作者: xgliu 时间: 2009-4-22 09:49 标题: 504 Need to authenticate first 兩台exchange2003，通過smtp連接器互相發郵件，只發對方域名，兩台服務器同樣的設定，但有一台exchange服務器出現了下面錯誤，別一台沒有出現，是什麼原因？
This is an SMTP protocol log for virtual server ID 1, connection #422. The client at "10.31.4.1" sent a "xexch50" command, and the SMTP server responded with "504 Need to authenticate first ". The full command sent was "xexch50 2232 2". This will probably cause the connection to fail.