Bounced Mail - DNS Problems?

[Res]

On Sun, 25 Mar 2007, Johnny Stork wrote:

> ALL outgoing mail appears to come from smtp.johnnystork.ca? Most messages

LOCAL_DOMAIN(`smtp.johnnystork.ca')dnl

> btw: How/why does the hostname and internal ip of the laptop sending the 
> message also show up? (johnny-lt.johnnystork.ca)

Not being a windows weenie I can't be sure but sounds like
computer_name + domain_name on laptop.

>   (reason: 554 <unknown[207.216.240.22]>: Client host rejected: rDNS/DNS 
> validation failed. Please setup matching DNS and rDNS records:

This guy is more anal that me...(and I didn't think thats possible)

He will be blocking hundreds of thousands of hosted domains worldwide.
Enforce forward looking and enforce PTR, BUT there should never ever be 
any full double match checking for reasons just mentioned, it's his 
problem, not yours.

His mailer is completely broken.. He is trying to read an earleir 
irrelevant received line. The only one he should be concerend with is the 
connecting one, in your case: (certain data munged deliberately)

Received: from gateway.johnnystork.xxx (sputnik.xxxx.ca [207.xxx.xxx.xx])

Nowhere in THAT line does it reflect and internal address.
If you gave real world DNS to gateway.xx.xx I'd maybe think ok its very 
far remotely possible, but you haven't.



-- 
Cheers
Res


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