[CentOS] Postfix on VLANs

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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