From owner-freebsd-questions@FreeBSD.ORG  Wed Feb 15 06:09:10 2006
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From: Malcolm Kay <malcolm.kay@internode.on.net>
Organization: at home
To: freebsd-questions@freebsd.org
Date: Wed, 15 Feb 2006 16:39:06 +1030
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Subject: Identity for HELO in sendmail
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I have set sendmail for masquerading with the lines:

FEATURE(masquerade_envelope)
MASQUERADE_AS(`internode.on.net')
FEATURE(`genericstable')
GENERICS_DOMAIN(`alpha.home')

in the .mc configuration file (alpha.home.mc).

I can now send e-mails using the standard 'mail' utility
to most destinations but apparently 'alpha.home' is still used as 
the source domain in the HELO command and as this just my 
private hostname for the machine it is not known at the 
receiving end in spite of the FEATURE(masquerade_envelope)
which I naively expected to be applied here.

Some sites not finding a valid host name here will reject the 
mail, EG when using send-pr I get the following:

... while talking to mx1.freebsd.org.:
>>> DATA
<<< 450 <alpha.home>: Helo command rejected: Host not found
<FreeBSD-gnats-submit@freebsd.org>... Deferred: 450 <alpha.home>: 
Helo command rejected: Host not found
<<< 554 Error: no valid recipients

How do I get sendmail to use a valid host name such as 
"internode.on.net"?

Help would be much appreciated,

Malcolm Kay