[PLUG] Bind behavior...

[Mike Neal]

Hi,

The names that need a trailing period have them, right?

Thanks,
Mike

At 06:36 PM 3/9/2007, you wrote:
>My impression, someone please step in and correct me if I am wrong, is that
>bind 9.3 is supposed to hand out your mail exchanger records in order and
>not shuffle them.
>
>My brother and I are attempting to be backup mail exchanger sites for each
>other and waddya know, we are finding that mail to site A ends up trying to
>go through site B even when A is still up.
>
>So we have...
>
>foo.com. MX 30 mail.bar.com
>foo.com. MX 20 mail2.foo.com
>foo.com. MX 10 mail1.foo.com
>
>at one site ( The domains aren't really foo and bar. )
>
>And
>
>bar.com. MX 30 mail2.foo.com
>bar.com. MX 20 mail1.foo.com
>bar.com. MX 10 mail1.bar.com
>
>at the other site.
>
>Now, our theory going in for someone trying to email a person on say foo
>is that their ISP's mail server won't go to bar unless foo is down.
>Apparently, our bind servers hand out the mail exchangers in shuffled
>order.  I guess the weights are included with this list, but they seem
>to be getting ignored wholesale.  Is there some way to disable shuffling
>in bind 9?  Is it possible to get the average smtp server out on the
>Internet to use the mail exhangers for a particular domain in order?
>
>Can a specific order be enforced when it comes to which mail excahnger for
>a particular domain gets tried first, second,...?
>
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