Re: [exim] MX name with _ : all relevant MX records point to…

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Author: mbneto
Date:  
To: W B Hacker
CC: exim users
Subject: Re: [exim] MX name with _ : all relevant MX records point to non-existent hosts
Hi,

The domain.com is simply an example. Not the real one.

I am hoping that there is a flag somewhere I can disable so exim will ignore
this or maybe a tweak in the configuration.

I've tried the manualroute without luck. I add the following as the first
router

problemdomain:
driver = manualroute
domains = domain.com
transport = remote_smtp
route_list = IP.of.the.MX

But it is not working.

On Wed, Apr 22, 2009 at 5:20 PM, W B Hacker <wbh@???> wrote:

> mbneto wrote:
> > Hi,
> >
> > Some clever admin configured the MX of a domain pointing to
> > server_01.domain.com.
> >
> > My users are unable to send email to that domain and attempts to contact
> the
> > admin and tell him that _ is not allowed resulted in 'every body else
> > works'.
> >
> > So, is there any workaround this issue?
> >
> > Regards.
>
> domain.com shows up with two A RR's:
>
> ;; ANSWER SECTION:
> domain.com.             3492    IN      A       66.150.120.131
> domain.com.             3492    IN      A       216.34.94.184
> conducive# dig any mx domain.com

>
>
> The MX is on 66.150.120.140
>
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;domain.com.                    IN      MX

>
> ;; ANSWER SECTION:
> domain.com.             3600  IN   MX      10 sentry.domainbank.com.

>
> ;; AUTHORITY SECTION:
> domain.com.             60      IN      NS      ns1.dotsterhost.com.
> domain.com.             60      IN      NS      ns3.dotsterhost.com.
> domain.com.             60      IN      NS      ns2.dotsterhost.com.

>
> ;; Query time: 187 msec
> ;; SERVER: 202.85.128.32#53(202.85.128.32)
> ;; WHEN: Wed Apr 22 21:11:42 2009
> ;; MSG SIZE rcvd: 128
>
> Suggest you simply Locally Blacklist it bothway.
>
> End of problem.
>
> Bill
>
>
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