maildir delivery failed是什么意思

maildir delivery failed是什么意思 Delivery has failed to these recipients or groups是什么意思 delivery是什么意思 英语翻译Delivery to the following recipients failed. Delivery to the following recipient failed permanently: Mail delivery failed:returning message to sender Delivery to the following recipients failed.failed作什么成分 failed是什么意思 express delivery letter是什么意思 turnkey delivery是什么意思 delivery confirm是什么意思 Delivery Team Leader是什么意思