Dan Widyono on 9 Oct 2005 04:19:50 -0000


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Re: [PLUG] exim4 and HELO host


Sorry can't help you with exim, but in sendmail for instance you need to
MASQUERADE_AS, and masquerade the envelope as well.  I masqeurade as the
external facing gateway, and any returning/incoming e-mail gets directly
shafted to the internal mail server.  Also, in sendmail, I need to
expose_user root to get any root e-mail masqueraded as well.

Hope those search terms help find what you need within exim.

Regards,
Dan W.

On Sat, Oct 08, 2005 at 11:33:22AM -0400, Jeff Abrahamson wrote:
> Drexel.edu has begun refusing email from me because I am saying
> 
>     HELO astra.purple.com
> 
> The name astra is my local machine's name but is (correctly) not
> listed in outside DNS (astra=192.168.0.7).  I've been googling all
> morning to figure out what to do, but no luck.  Any suggestions?
> (This is debian sarge.)
> 
> Current suspicion suggests modifying update-exim4.conf.conf or that I
> somehow want to change the value of primary_hostname.  But I haven't
> found documentation on what changes to these things would mean.
> 
> A second question is what I should say instead.  HELO purple.com (no
> such host, but there is an MX record) or MX puddle.purple.com (there
> is such a host, it's the name of my gateway, but I don't listen to
> incoming smtp there).
> 
> Any help appreciated.
> 
> 
> Here's the error I receive:
> 
>   The address to which the message has not yet been delivered is:
> 
>     Xyz@drexel.edu
>       Delay reason: SMTP error from remote mail server after RCPT TO:<Xyz@drexel.edu>:
>       host smtp.mail.drexel.edu [144.118.31.27]: 450 <astra.purple.com>:
>       Helo command rejected: Host not found
> 
> -- 
>  Jeff
> 
>  Jeff Abrahamson  <http://www.purple.com/jeff/>    +1 215/837-2287
>  GPG fingerprint: 1A1A BA95 D082 A558 A276  63C6 16BF 8C4C 0D1D AE4B



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