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Sending out 504 error

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  • Sending out 504 error

    i have this problem where i was able to send out email fine in out look via mail.domain.com and now every time i send a email i get 504 <OFFICEPC>: Helo command rejected: need fully-qualified hostname


    i can still receive email and thats coming via mail.domain.com.

    Any ideas how to solve this.
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