israel.garcia@xxxxxxxxxxxx wrote:
I've installed bind on centos 4.3.. This is a part of my config file:
example.com. IN MX 10 mail.example.com.
example.com. IN MX 15 mail1.example.com.
example.com. IN MX 20 mail2.example.com.
mail.example.com. IN A x.x.x.x
mail1.example.com. IN A x.x.x.x
mail2.example.com. IN A x.x.x.x
Every seems to be fine, but I'm constantly receiving messages in my 3 MX
servers, even if mail.example.com (the less MX record) is available
waiting for connections from outside... Why if my less mx record server
is available the others servers are constantly receiving messages for my
domain?
Thanks for your time
Israel
There is a sendmail milter available for dealing with this. Basically,
it can tell the backup mailservers to look for the primary before
receiving mail. This is pretty much a must if you're going to do any
volume of reliable email service. It also can look ahead for a real user
before receiving mail on a backup system. The milter is called milter-ahead.
http://www.milter.info/sendmail/milter-ahead/
It does cost a bit... for commercial use.. or is free for individual use.
John Hinton
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