EXMH can not send e-mail

[kushnir@pccmu1.fnal.gov (Alexander Kushnirenko)]

Hi, All

I have problem sending e-mails from EXMH, but I can receive them succesfully.
It looks like ordinary Mail program works fine (I can both send and receive e-mails).  Here is the message from EXMH:
post: problem initializing server; [RPLY] 550 '<kushnir@pccmu1.fnal.gov>' sender address target 'pccmu1.fnal.gov' is not a valid e-mail domain.
send: message not delivered to anyone

Any suggestions what should I check?

Here is a list of relevant packages:
+++-===============-==============-============================================
ii  smail           3.2.0.100-4    Electronic mail transport system.
ii  exmh            2.0.2-1        An X user interface for MH mail.
ii  mh              6.8.4-17       A set of electronic mail handling programs.
ii  mailx           8.1.1-6        A simple mail user agent.


Thank you,
Sasha.


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