Re: [exim] verify = reverse_host_lookup - variation?

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Autor: Marc Perkel
Data:  
Para: exim-users
Assunto: Re: [exim] verify = reverse_host_lookup - variation?


Fred Viles wrote:

>On 13 Oct 2005 at 9:40, Marc Perkel wrote about
>    "Re: [exim] verify = reverse_host_lo":

>
>| Fred Viles wrote:
>| 
>| >On 13 Oct 2005 at 8:07, Marc Perkel wrote about
>| >    "[exim] verify = reverse_host_lookup":
>| >
>| >| I'd like to do this verification:
>| >| 
>| >| verify = reverse_host_lookup
>| >| 
>| >| except I want it to fail only if the lookup returns no host but pass if 
>| >| it is just misconfigured. Is there a way to do that?
>| >
>| >Misconfigured how?  You want to know if there's no PTR record, but 
>| >not if the PTR record doesn't own a matching A record?
>| >
>| >RTFM dnsdb.
>|...
>| Misconfigured in that there is a reverse dns lookup - but it's wrong. 

>
>Again, what do you mean by "wrong"? AFAIK, my guess is the only
>useful definition - was it right, or not? If not, what exactly are
>you talking about?
>
>| believe it or noe - etrade.com is misconfigured this way.
>
>That statement makes no sense. etrade.com is a domain name, not an
>IP address, so you wouldn't expect it to own a PTR record at all.
>
>etrade.com does own an A record with IP address 12.153.224.22, but
>that IP address has valid rDNS. So no, I don't believe what you said
>(as opposed to what you *meant*, which I don't know).
>
>- Fred
>
>
>
>

Fred - try this:

http://www.dnsstuff.com/tools/ptr.ch?ip=12.153.224.146

That is the IP that etrade is sending outgoing email on. And - check
sender verify on smartalerts@??? and you get "No such user".
etrade.com has morons for email admins.

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