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| Subject: | Re: ***SPAM*** Re: Massive SPAM Increase {-2.6} {-2.6} |
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| Date: | Mon, 16 Oct 2006 10:04:30 -0700 |
On Fri, 13 Oct 2006 22:52:12 -0500, Paul Schmehl wrote:
--On October 13, 2006 10:46:34 PM -0400 Valdis.Kletnieks@vt.edu wrote: I'm not sure what you mean by "split inbound and outbound", but any outbound MX host *should* be listed in DNS. You only list one - smtp.vt.edu. 192.82.162.213 is reversible, so it would get points for being honest about its IP/hostname, but it would lose points for not being listed in DNS as an MX. The overall score would determine if the mail was rejected, but I doubt that it would be.
Wrong. Completely wrong. Any UNIX-like box with qmail can be configured to send mail out. My laptop, for example. But my domains only receive mail at the servers designated as MX hosts in DNS. Your idea that an outbound mail host should be listed in DNS indicates a complete misunderstanding of the purpose of an MX record. These records indicate to other MTAs where they should deliver mail *to*, not where they should accept mail from.
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