On 15 Oct 2003 at 8:03, D Go wrote:

> I said "HELO DGo Pro" and mail1.hiresystems.com responded:
> 
> 501 Invalid Address

"HELO" is supposed to be followed by a hostname, and more and more 
systems are checking at least the syntax of the HELO as a way to 
block spam.  "DGo Pro" is not a valid hostname (it has a space and no 
dots, for one thing).  Change the server name used for HELO to be the 
fully qualified name of your mail server, and you should be okay.

-- 
Keith C. Ivey <[EMAIL PROTECTED]>
Tobacco Documents Online
http://tobaccodocuments.org

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