On Thursday 30 July 2009 14:57:16 John King wrote:
> I am simply trying to setup a postfix server solution (Fedora 9 is
> the OS) to where I can host email for multiple email domains -
> similar to an ISP setup.
>
> I am quite familiar and comfortable with setting up most of the
> postfix elements and am setting them up using the virtual mailbox
> method where the mailboxes are located at /var/spool/vmail/domainname
>
> I can send email to all of the mailboxes but as soon as I try or
> a user tries to send email from their locations / iphones or
> wherever, the dreaded relay_denied errors start to happen.

I am wondering how you could have gotten to a level of familiarity
without knowing about AUTH:
        http://www.postfix.org/SASL_README.html

Mail clients should be set to authenticate, unless, like an ISP, you
choose to allow relaying from networks under your control. See:
        http://www.postfix.org/BASIC_CONFIGURATION_README.html
        http://www.postfix.org/postconf.5.html#mynetworks

> I am employing different setups based on this need from different
> documentation I have found and am now at the point where the
> errors state do not list domain xyz in both virtual_mailbox_domains
> and relay_domains. 

Pick which class you want any specific domain to be in. List it in the
definition for that class. No overlaps. See:
        http://www.postfix.org/ADDRESS_CLASS_README.html

> I need to know which elements of main.cf I need to change to
> accomodate what I am trying to achieve
>
> here is the result of my postconf -n

Snipped as irrelevant at this point, as you included no logs.
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