急！emos邮箱有个用户，能收到邮件，但总是报错。

emos邮箱有个用户，能收到邮件，但总是报错。

有个同事，发给他邮件，他那边邮箱能收到我发的邮件，但是我发邮件的邮箱总是收到他那边发过来的未投递的报错，请问怎么回事？

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<name@gongsi.com>: Command died with status 127: "maildrop". Command output: sh:

name@gongsi.com: command not found