[rhn-users] Sendmail sender apache at localhost.localdomain

[Chinmin Zhou]

I am using RHEL4 as a web server, using sendmail as the default SMTP mail 
to send out email form a PHP application. The Sendmail relays to my 
company's mail server(domino), What I did was to set  the smarthost as the 
domino mail server in the Sendmail configuration file. It works. But now 
domino mail server has some unrouted out mail says like:  SMTP Protocol 
Returned a Permanent Error 553 5.1.8 <apache at localhost.localdomain>... 
Domain of sender address apache at localhost.localdomain does not exist

How can I make the sender address apache at localhost.localdomain appeard as 
a valid sender address?  In the mail log, the 
ctladdr=<apache at localhost.localdomain>

Thanks for your help!


CZ
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