Mailing List Archive: Something very wrong with my spf record/Me

Hi all,

My email forwarder allows me to change the DNS records so I'm trying to
setup the SPF record..but I think I need some help.
I have an old version of Mdeamon on my network which is consolidating mine
and my wife's mail and a couple of other ISP accounts. Sometimes I like to
have this server smtp mail direct to MX holders (especially if it goes over
my ISP's limits (size not quantity)) but usually I forward everything
through my ISP's (nildram) SMTP server.
So I need to have an SPF that will handle sending direct from my fixed IP
and from my ISP's SMTP IP. I've done it using both my IP and the DNS of
nildrams SMTP server as a: records

v=spf1 mx a:myIP a:Nidrams -all

If I test this (at SPFToolsinfinitepenguins.net)using my IP in the SMTP
client it works ok.
If I put a fake IP there and rely on the HELO of smtp.nildram.co.uk it fails
saying the lookup on Nildram didn't work.

What have I done wrong?

Thanks
Deci

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Hi,

I'm trying to figure out what it is you want to accomplish. You have an
email server on your host, and want to send email from it. I'm not sure
what this email has as a MAIL FROM:, so i'm not sure how to help you
here.

However, if there is an MAIL FROM present, the HELO is not important.
The SPF record from the domain in MAIL FROM is usually used to check the
IP of the sending MTA, unless MAIL FROM is empty (which happens when
mail is bounced for example) in which case HELO is used.

Also, when I do a TXT lookup for smtp.nildram.co.uk, there is no TXT
record in the response, so smtp.nildram.co.uk does not publish spf..

Kind regards,

Koen

On Fri, Jul 09, 2004 at 11:27:44PM +0100, Simon wrote:
> Hi all,
>
> My email forwarder allows me to change the DNS records so I'm trying to
> setup the SPF record..but I think I need some help.
> I have an old version of Mdeamon on my network which is consolidating mine
> and my wife's mail and a couple of other ISP accounts. Sometimes I like to
> have this server smtp mail direct to MX holders (especially if it goes over
> my ISP's limits (size not quantity)) but usually I forward everything
> through my ISP's (nildram) SMTP server.
> So I need to have an SPF that will handle sending direct from my fixed IP
> and from my ISP's SMTP IP. I've done it using both my IP and the DNS of
> nildrams SMTP server as a: records
>
> v=spf1 mx a:myIP a:Nidrams -all
>
> If I test this (at SPFToolsinfinitepenguins.net)using my IP in the SMTP
> client it works ok.
> If I put a fake IP there and rely on the HELO of smtp.nildram.co.uk it fails
> saying the lookup on Nildram didn't work.
>
> What have I done wrong?
>
> Thanks
> Deci
>
>
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> Donate! http://spf.pobox.com/donations.html
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