邮件转发日志

邮箱A设置同时转发邮箱B，C发送邮件给A。

邮箱A日志

Source	EventId
STOREDRIVER	RECEIVE
ROUTING	REDIRECT
ROUTING	REDIRECT
ROUTING	TRANSFER
STOREDRIVER	DELIVER

邮箱B日志，注意日志Sender为C地址。

Sender	Source	EventId
C@eccom.com.cn	ROUTING	TRANSFER
C@eccom.com.cn	STOREDRIVER	DELIVER