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Can somebody verify me (mail and dns setup)	by altordwm	2008-03-19 05:48:19
Many mail servers are initiating an RDNS	by classic_jon	2008-03-19 06:42:14
checking that a ptr record points	by altordwm	2008-03-19 06:59:05
to a domain name (and even filtering things that contain words like dsl, dialup, ppp, etc) is legitimate. Checking that that domain names points back to the same IP is not a requirement that I know of. We have an SPF record, which includes both /28 subnets. That should be enough.
[ Reply ]
It is not a requirement but many people are using	by classic_jon	2008-03-19 07:08:16

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