On 2011-02-15 at 21:26 +0100, technique@??? wrote:
> Is it possible to send email from different IP, depending on email address ?
>
> Example :
> I have a domain : domain.com
>
> If message is sent by user1@???, I want to use IP aaa.aaa.aaa.aaa
> If message is sent by user2@???, I want to use IP aaa.aaa.aaa.bbb
>
> Is it possible ?
Yes.
> And how to do this ?
Assume that you have a file /path/to/data/ips_for_sender:
user1@???: aaa.aaa.aaa.aaa
user2@???: aaa.aaa.aaa.bbb
Before your normal "dnslookup" Router, have:
dns_override_sendip:
driver = dnslookup
domains = !+local_domains
senders = lsearch;/path/to/data/ips_for_sender
address_data = $sender_data
transport = remote_smtp_fromip
Then define a transport:
remote_smtp_fromip:
driver = smtp
interface = $address_data
So, the new Router checks the sender against a file, doing an "lsearch"
lookup which checks for the key in the file. The value from that file
is temporarily in $sender_data; we save it away using the address_data
option, which makes it available in $address_data in the Transport.
The Transport option "interface" declares which IP address to use when
sending.
-Phil
i
