[CentOS] Postfix on VLANs

Tue Apr 11 16:16:46 UTC 2006
Cameron Showalter <cameron at gwschool.com>

Andrew Vong wrote:
>
> Hi All,
>
> I'm having some problems getting postfix to relay mail. I'd appreciate
> any tips. Perhaps there are some settings which I may have missed,
> somewhere.
>
> The postfix mail server is on VLAN 250 (192.168.250.0) whilst I have
> several other users on other VLANs (e.g. 91, 92, 93, etc...
> 192.168.91.0, 192.168.92.0, 192.168.93.0, etc...).
>
> So, if I had a PC sitting on VLAN 91 with IP 192.168.91.1, I am unable
> to relay mail BUT checking mail via POP3 works fine.
>
> In *//etc/postfix/main.cf/*, I have set the following:-
>
> mynetworks_style = subnet
> mynetworks = 168.168.91.0/28, 127.0.0.0/8
>
> Do you know what setting I may be missing?
>
> Thanks.
>
> Best Regards,
> Andrew
>
>
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>
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Can you take it down to:
mynetworks = 192.168.0.0/28, 127.0.0.0/8

unless you're trying to limit to just specific vlan's/subnet's...