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They can’t provide reverse DNS for address blocks that are not SWIPed to them or delegated to them. That’s simply the way DNS works. Regards, Michael B. Smith MCSE/Exchange MVP http://TheEssentialExchange.com From: Robert Cato [mailto:[EMAIL PROTECTED] Sent: Saturday, December 29, 2007 8:22 PM To: NT System Admin Issues Subject: Re: Looking for a DNS provider NSOL is fine for A records, but they do not offer reverse DNS for MX records. I learned this mistake the hard way. They are one of the biggest brand names in the space and I found it hard to believe they did/do not provide this "basic" service required to properly handle MX records. Robert On Dec 28, 2007 9:58 AM, David Mazzaccaro <[EMAIL PROTECTED]> wrote: My registrar is Network Solutions - any reason I can't (or shouldn't) be using them? It looks like if they are hosting our DNS as well as our domain names, I can make DNS changes 24x7 (and at no additional cost). Thanks, Dave ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~