邮件伫列 Mail Queue
邮件伫列管理 Queue Management
·2,447,543篇论文数据，部分数据来源于NoteExpress
以下理由导致您的信件无法寄达：由于无法在允许的伫列周期之内与目标伺服器取得连线，导致这封邮件无法寄达。
This message was undeliverable due to the following reason: Your message could not be delivered because the destination server was unreachable within the allowed queue period.
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