[SpamCop-List] Re: Telnet help? Finding active addy? (LONG)

[Margie Arbon]

On Mon, 12 Feb 2001 09:29:19 -0500, "SD" <spamdeputy> wrote in
<968s9n$2vg$1>:

>One more question: your dig turned up multiple mail servers, is it OK to
>just check one or should they all be checked for the addy?

Look again at what I found:

;; ANSWER SECTION:
att.net.                19h52m48s IN MX  5 gateway2.att.net.
att.net.                19h52m48s IN MX  5 gateway3.att.net.
att.net.                19h52m48s IN MX  5 gateway4.att.net.
att.net.                19h52m48s IN MX  5 gateway5.att.net.
att.net.                19h52m48s IN MX  5 gateway6.att.net.
att.net.                19h52m48s IN MX  5 gateway1.att.net.

All of those servers are priority 5, which means none is "primary", they
simply round robin.  The answers you receive would most likely be the
same for all of the servers.  If I had found, for example:

;; ANSWER SECTION:
mail.com.               26m47s IN MX    10 mail-intake-1.mail.com.
mail.com.               26m47s IN MX    20 mail-intake-2.mail.com.
mail.com.               26m47s IN MX    30 mail-intake-3.mail.com.

I would query the primary mail server, mail-intake-1.mail.com.

>Thanks again Margie, looks like I wasn't the only one wondering about this.
><g>

You are quite welcome. :)

-- 

Margie