Change sending ip in Postfix

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June 26th, 2009, 02:04 PM

bearsuit2

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Join Date: Dec 2008

Posts: 12

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Change sending ip in Postfix

I have postfix installed on my dedi with muliple ip's. I've added the extra ip's as "virtual interfaces" within network configuration in webmin, so postfix can access them.

Now, I need to have outgoing mail from postfix send from any given one of the virtual ip's that I request. In postfix, it seems logical to change:

let's say my secondary ip is 1.2.3.4 and resolves to host.abc.com, with rdns and ptr records aligned as well.

(internet hostname of this mail system) myhostname = host.abc.com
(network interfaces for receiving mail) inet_interfaces = 1.2.3.4
(domain to use in outbound mail) myorigin = host.abc.com
(domain to receive mail for) mydestination = host.abc.com, localhost.abc.com, ,localhost

With these changed my mail headers still claim it's coming from the server main ip, not the virtual ip

July 1st, 2009, 06:16 AM

fayax

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Join Date: Aug 2005

Posts: 180

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edit /etc/postfix/main.cf and insert this:

Code:

smtp_bind_address = xx.xx.xx.xx

where xx.xx.xx.xx = your virtual ip

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