Hugh E Cruickshank wrote:
From: Frank Cox Sent: April 9, 2008 20:01
On Wed, 09 Apr 2008 19:54:28 -0700
Hugh E Cruickshank <hugh@xxxxxxxxxxx> wrote:
Is it possible to force sendmail to use a specified host name for
outbound email to a selected domain name instead of the host name
that can be found by looking up the DNS entry?
I'm not entirely sure that I understand your problem. If you
have a unique
domain name, and your client also has a unique domain name, and
your dns
records are properly configured, then sending email from domain
name A to domain
name B should just work, regardless of how close your actual IP
addresses are.
I agree whole heartedly that it "should just work" but time and time
again we have see where it does not work.
Having said that, you can put a domain name and IP address in
/etc/hosts on the
originating computer and that computer will henceforth use the IP
address
specified there.
That would work if I was looking to use a specific IP address but
would like to use a specific host name. For example I would like
all mail outbound to example.com to bypass the DNS/MX entry of
mail.example.com and use instead backupmx.isp.com not just the IP
Address of backupmx.isp.com.
Thanks muchly for your suggestion.
Regards, Hugh
Hi, It has been some time since I have had to do anything with Sendmail
like this, but I believe mailertable is what you need. See
http://www.sendmail.org/m4/mailertables.html
Hope this helps :)
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