Re: [exim] reverse dns lookup not functioning?

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Autore: Hongyu Zhang
Data:  
To: Andrew Nimmo
CC: exim-users
Oggetto: Re: [exim] reverse dns lookup not functioning?
There is no question that the reverse look-up did fail for this IP,
but I thought as long as I set up the host_lookup option, exim should
have automatically reject them. Are there any other options I need to
set up in order to reject those emails? Thanks!



Quoting Andrew Nimmo <andrew.nimmo+exim.org@???>:

> you could have confirmed yourself that the ip address doesn't have
> an
> associated ptr record:
>
> dig ptr 162.241.141.61.in-addr.arpa
>
> confirming what exim reports. what you decide to do if reverse
> lookup
> fails to give a name is independent of the lookup.
>
> regards
> andrew
>
>
> On 13 Apr 2005, at 21:57, Hongyu Zhang wrote:
>
> > Dear all,
> >
> > I found some emails without right reverse dns lookup still come
> > through into my email box even though I set up exim to do reverse
> dns
> > lookup. Here is an example in the exim log:
> >
> > 2005-04-13 10:45:37 no host name found for IP address
> 61.141.241.162
> > 2005-04-13 10:46:13 1DLlwH-0003Ae-TI <= asdfg122357@???
> > H=(sina.com) [61.141.241.162] P=esmtp S=806
> > 2005-04-13 10:46:22 1DLlwL-00040G-Fk <= asdfg122357@???
> U=hongyu
> > P=local-bsmtp S=1199
> > 2005-04-13 10:46:22 1DLlwL-00040G-Fk => <forward@???>
> > R=virtual_user T=virtual_userdelivery
> >
> > This IP address 61.141.241.162, which appeared in the first line
> of
> > the log being errored for no host name, still went on again in
> the
> > second line sending the email to my address forward@???
> >
> > Here is the line of reverse lookup in /etc/exim.conf
> >
> > host_lookup = 0.0.0.0/0
> >
> > Is the reverse dns lookup functioning or not?
> >
> > Appreciate your help!
> >
> >
> > --
> > ## List details at
> http://www.exim.org/mailman/listinfo/exim-users
> > ## Exim details at http://www.exim.org/
> > ## Please use the Wiki with this list -
> http://www.exim.org/eximwiki/
>
>