On 16/02/12 10:17, Dominic Benson wrote:
On 16/02/12 08:26, Muhammad Irfan wrote:
<https://mail.google.com/>Hello,
I know smarthost selection can be done on basis of sender_address.
i found following two URL's are good resources for that.
http://www.volker-wegert.de/en/node/35
http://www.tgunkel.de/docs/exim_smarthosts.en
But is that possible on basis of recipient address? I need whenever my
domain user send an email to same domain user it will relay to another
server e.g. [email protected] sends an email to [email protected] it need to
relay on mail.example.com SMTP.
And when my domain user sends an email to external domain it will go
through locally by dnslookup. e..g [email protected] sends an email to
hotmail,yahoo, gmail it needs to go through locally from
mail1.example.comSMTP.
The manualroute router is what you need here - full docs on it are at
http://www.exim.org/exim-html-current/doc/html/spec_html/ch20.html
In short, specify
domains=example.com
route_data=mail.example.com
transport=remote_smtp
If you're on a Debian-ish setup, then
router/150_exim4-config_hubbed_hosts contains a good generalised
implementation
It occurs to me that there are a couple of other thing I should say on this:
- If all the mailboxes are on the US host, couldn't you just use
dnslookup for *all* outbound mail - as there is no local delivery, your
MX need only refer to the primary (US) site. The only reason not to
(that I can think of) would be if you want to send to a backend host
with a firewall exception, bypassing the normal frontend MXes. If you
can, then it would remove some maintenance overhead.
- Depending on your existing routers and the domains they handle, you
may need to be careful about the router order. It needs to be before any
other router that would (but shouldn't) handle the domain.
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