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jackis -> Relaying denied / can't send mail to aol.com (7.Apr.2006 5:53:58 AM)
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We have 1 internal Exchange 2000 server for our only domain, dortfcu.org. When we try to send an email to anyone at the aol.com or cisco.com domain, their email server says 550 5.7.1 <email address>... Relaying denied. I think the issue is a dns issue and is due to the fact that I upgraded one of our 2 dns servers from windows 2000 server to windows 2003 server last weekend.
NSLOOKUP of dortfcu.org with type=mx says that mail exchanger = smtp.dortfcu.org. The servers real name is dort2.dortfcu.org. So I guess this means my mx record is wrong? I don't have access to my dns server right now but I do remember looking at an mx record on there today before I left work. AT&T, our ISP, actually hosts our dns records, including an mx record. So why does my internal dns server also have an mx record - is this correct?
I pulled a dns report for our domain dortfcu.org, and it says:
WARNING: One or more of your mailservers is claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or dash, then the host name). If your mailserver send out E-mail using this domain in its EHLO or HELO, your E-mail might get blocked by anti-spam software. This is also a technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname given in the SMTP greeting should have an A record pointing back to the same server.
smtp.dortfcu.org claims to be non-existent host
dort2.dortfcu.org.org:
220 dort2.dortfcu.org ****** Thu, 6 Apr 2006 17:20:03 -0400
As I stated earlier - my server actually IS dort2.dortfcu.org so I'm not sure why this is being reported this way. I think it probably also has to do with why my mail is being rejected. Hoping there is a dns/exchange guru out there that can advise!
Thanks
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Jacki
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