sendmail error->Deferred:no such file or directory

["Brad Ching" <bqian 21cn com>]

Hello everyone:
    Help me quickly,it's very important for me.Our sendmail don't send mail
and give me error message: <<Deferred:no such file or directory>>.
    Please tell me what does it mean and how to fix this error.Thank you
very much.


Brad Ching.