relaying mail via comcast smtp server

[nmeyers at javalinux.net]

On Fri, Dec 30, 2005 at 10:38:00AM -0500, Robert La Ferla wrote:
> I need to set up outgoing mail on one of my Linux systems.  I configured 
> masquerading via sendmail but I ran into this anti-SPAM measure from 
> Comcast:
> 
> Diagnostic-Code: SMTP; 550 [PERMFAIL] comcast.net requires valid sender 
> domain
> 
> I was able to trick it by adding my domain name to 127.0.0.1 
> mydomain.com localhost but that's not a good solution because it 
> interferes with other programs.
> 
> What's the best way to handle this? 

In postfix, the server will supply a sender domain controlled by the
"myorigin" config parameter. I haven't touched sendmail in many a year,
but I've got to believe there's a similar control available.

Nathan

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