[SC-Help] Re: Enlighten me on this.

[Glenn Daniels]

"Mike Easter"  wrote in message
[...]
> The actual 'where' I found by using a lookup tool, SamSpade's DNS
> function on the name  pmta06.mta.everyone.net  and by checking the dig
> for everyone.net's MXes.  Sometimes the pmta06 name being used might not
> be exactly what the name of the mx is.
>
> The 'variation' in the name of the mx and the way the server stamped the
> line and the way the forward DNS and the reverse DNS work are beyond
> where we want to go with the discussion just now;  but that's what you
> cited me saying at the top.
>
> That is, SamSpade's 'handy' DNS works like this:
>
> dns everyone.net
> Mail for everyone.net is handled by sitemail.everyone.net
> sitemail2.everyone.net
>
> and I can get the IPs for both of those:
>
> Canonical name: sitemail.everyone.net
> Addresses:
>   216.200.145.35
>   216.200.145.51
>
> Canonical name: sitemail2.everyone.net
> Addresses:
>   216.200.145.36
>
> I can also 'go the other way' and feed it a name to get an IP:
>
> dns pmta06.mta.everyone.net
> Mail for pmta06.mta.everyone.net is handled by sitemail.everyone.net
> Canonical name: pmta06.mta.everyone.net
> Addresses:
>   216.200.145.35
>
> So, you can see that sitemail and pmta06 are 'the same' functionally.
>
> So, if a mailer wanted to mail something to an address handled by
> everyone.net, let's say jane at everyone.net, then the mailserver would
> find out how to 'aim' the mail at the everyone.net mx, and then the
> everyone mx would receive it and begin stamping the lines we're talking
> about.
>

Most Excellent! by way of elaboration. FWIW I have added Sam's site
to my "Wanted" folder. Although I am thinking I may have known that
pmta06.etc "belonged" to my provider, I did not know for how you
accomplished the "lookup". Thanks!

Glenn