想請問各位大神,
有來自國外的新客戶反應信件都寄不進來公司郵箱,
他寄出過一段時間就被退信了,
退信訊息如下:
Delivery has failed to these recipients or groups:
OOXX@KKKK.com
The server has tried to deliver this message, without success, and has stopped trying. Please try sending this message again. If the problem continues, contact your helpdesk.
想請問我需要修改Exchange的什麼嗎?