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.

youdao

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.

youdao