From Postmaster Email Bouncing

[Chris Rees]

On Jun 7, 2012 6:02 PM, "Al Cooper" <cooper at hmcnetworks.com> wrote:
>
> Hi All,
>
>
>
> A few weeks ago my server’s emails sent from the postmaster user started
to bounce with the following error message:
>
>
>
> The following addresses had permanent fatal errors ----- <user>@domain.com
>
>     (reason: 553 5.1.8 <root at server.domain.com>... Domain of sender
address root at server.doman.com does not exist)
>
>     (expanded from: <root at server.domain.com>)
>
>
>
> It appears that my email is being blocked because there are not DNS
records for the sub-domain server.domain.com.
>
>
>
> If this is correct how do I change the postmaster sender address from
server.domain.com to domain.com?
>
>
>
> Or is there a better solution?
>
>
>
> Thanks for your help,
>

Sendmail / Postfix / ?

Chris
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