Mark M. Hoffman on 11 Oct 2005 04:17:43 -0000


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Re: [PLUG] Re: exim4 and HELO host


Hi Tom:

> On Mon, 10 Oct 2005, Mark M. Hoffman wrote:
> > I had a similar problem some months ago (except I use postfix).  I found
> > out (by watching with ethereal) that Thunderbird just says:
> > 
> > 	EHLO [127.0.0.1]

* Tom Diehl <tdiehl@rogueind.com> [2005-10-10 22:52:07 -0400]:
> Remember MUA != MTA.

I know.  My point was to establish what a known good HELO looks like - with
T'bird configured to talk to my ISP's SMTP/relay.

> > So I modified /etc/postfix/main.cf to this:
> > 
> > 	smtp_helo_name = [10.17.17.3]
> > 
> > ...and all was working again.  Question to email gurus: is there anything
> > wrong with that?
> 
> If you relay your mail through your ISP and they are happy then no there is
> no problem. If you send all of your mail directly, then you will have problems
> because a lot of mail servers will not accept mail from servers that do not
> have a fully qualified helo. Some will some will not. Suggest fixing your dns
> and setting an fqdn helo. 

Currently, I'm relaying through DCAnet - but I see your point.  Thanks!

Regards,

-- 
Mark M. Hoffman
mhoffman@lightlink.com

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