[Wolves] MX records

Simon Burke simon.burke at gmail.com
Thu Feb 17 12:25:33 GMT 2005


On Thu, 17 Feb 2005 10:44:59 +0000, Jon Farmer <jonfarmer at enta.net> wrote:
> Simon Burke wrote:
> 
> > At the momment they are saying 'oh, its less secure to do it via MX
> > records' (and i get the impression that they dont understand how
> > e-mail works corectly).
> 
> It's impossible to do SMTP mail exchange without MX records over the
> internet.

This i know, but i can get better results talking to the wall next to
me to be honest, lol. I guess ignorance is bliss for some people.

> 
> > I have until friday to make my presentation apparently. Anyway, are
> > their any dns guru's about that can help me define what mx records
> > are, best practices and security related issues.
> 
> DNS MX records define the "Mail Exchangers" for the domain. This can
> typically mean the main SMTP in server(s) and any secondary or tertiary
> et al servers that handle mail for the domain when the main servers are
> not available. The MX records are setup in DNS with a 'waiting' to
> define if they are primary or secondary etc.
> 
> 
> > For some reaosn i always get the reputation of the technical one, mind
> > that what you get for working for MS based companies, If you cant
> > point and click then its too hard, the IT managers idea of finding
> > answers is phoning his brother, yep a *nix techie.
> 
> What might be an idea is to do a dump of the DNS records for your domain
> name and show your "doubting thomas" the already existing MX records
> that point to the IP of the server of your current POP host.

Thats a good point which i never thought of to be honest, so i think
i'll do that now and chuck it in the report thanks for that.

I've read in one of my trust RFC's that smtp requires reverse DNS to
function correctly? Is this right or is ti just being pedantic?

-- 
Theres no place like ::1

Thanks,
SimonB

http://simon.geek-web.co.uk



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