[分享]exchange2003升级exchange2010 发送错误 [复制链接]

error '451 4.4.0 Primary target IP address responded with: "451 5.7.3 Cannot achieve Exchange Server authentication." Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts.'.

请确保Exchange2003上的SMTP虚拟服务器的验证方式如下：

图片:exchange-2003-smtp-authenticaton.png

图片:exchange-2003-2010-integrated-authentication.png

配置修改好之后，重启2003上的IIS服务和2010上的transport service。