Detetcted IP Address

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nugroho.redbuff
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Joined: Wed Aug 12, 2015 10:38 pm

Detetcted IP Address

Postby nugroho.redbuff » Thu Sep 10, 2015 10:10 pm

Our server IP is a.b.c.67 and the gateway IP is a.b.c.65. Both are Public IP Address in 29 bit subnet. Our problems is that receipient server (gmail, yahoo, etc) detect gateway IP as originating address. We need to know, is the problem caused by server configuration or network configuration? Our Gateway handled by Mikrotik Router that bridge the Public IP to Server host. Thanks



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manfred.gipp
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Detetcted IP Address

Postby manfred.gipp » Fri Sep 11, 2015 12:57 am

It seems that your router is connecting outgoing connects via the public gateway IP-address and not via public Mail-Server-IP-Adress.

Incoming connections are not the problem?

Configure your Router for outgoing connects from your Mailserver to send it over public mailserver Address and not via standard gateway. But only for outgoing connects.

Mail-Server -> (internal IP-Address) Router -> (external IP-Address Mailserver) Router



Example for outgoing connections:

Mailserver internal IP-Address (192.168.200.5)

|

Router internal GW (192.168.200.1)

|

Router external (a.b.c.67)



Its a router config Problem. Not Zimbra or Zimbra-Server Problem

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