SMTP error message

That means either your server hasn't got a reverse DNS record and/or your server isn't announcing itself correctly.

Reverse DNS is configured by your ISP.

Put your domain in to dnsreport.com and see whether it flags anything in the mail server section.

Simon.

I ran that report like you asked, the only thing that comes up in the mail section is this:

Mail server host name in greeting

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 a dash, then the host name). If your mailserver sends 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. Note that this one test may use a cached DNS record.

mail.image-specialists.com claims to be invalid hostname '**************************************************0****0****0':
   220 **************************************************0****0****0 *********************200*****0******0*00

You have a PIX.
Turn off fixup SMTP in the PIX configuration. Then run the test again.

Simon.

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 a dash, then the host name). If your mailserver sends 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. Note that this one test may use a cached DNS record.

mail.image-specialists.com claims to be invalid hostname 'IMAGEAPP':
   220 IMAGEAPP Microsoft ESMTP MAIL Service, Version: 6.0.3790.1830 ready at Wed, 6 Jun 2007 15:20:17 -0400


THis is what its stating now, i made the change and i get more. I'm also getting an HELO errors as well. I tried some different solutions but its not working. I think the problem is whoever is hosting the records, but not sure. Any other suggestions would be appreciated, thank you.

Your mail system could not find a way to successfully communicate with the destination system. Please notify your administrator.

            <Servername #5.5.2 smtp;504 5.5.2 <Servername>: Helo command rejected: need fully-qualified hostname>

I made the change, i'm going to have them try it tomorrow. I'll let you know, thank you for your help.

Worked for me!