Problem with sendmail (don't receive mail but dead.letter)

Thai (
Wed, 15 Dec 1999 20:39:29 -0800

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hello everybody,

I use sendmail included with redhat 6.0. At the frist time it works well
but now no user can receive their mails, instead they have a file named
'dead.letter' in their home directory and so does root although no body
sends root anything. I enclose the dead.letter file in root so you can
help me.
Thanks for all your help.

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