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  1. #1

    SENDMAIL REDHAT 9- email - -problems

    I have had experience with linux systems for www, dns and etc.
    However, I had to rebuild a linux mail server using sendmail. I was able to get through the config and figure just about everything out but one thing.

    Users should be able to send mail to However, if a mail message gets sent to a bounce is received that says (reason:550 User not local. Authentication required for relay).

    However, if i send the email to it goes through and the user receives the message.
    have tried several changes in the file and I have had no luck.

    Any help would be greatly appreciated.


  2. #2


    i was able to fix this problem, i realiszed that i had not added all of the server named i.e. to the local host list.

    doing this fixed the problem

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