[anti-abuse-wg] lists.ripe.net

Gert Doering wrote:
> hi,

Hi,

lists.ripe.net is a simple CNAME to mamba.ripe.net without
own MX records

Any mailserver will try to deliver mail directly to the
A record, if there are problems with the reachability of
the zone, the network or the main MX records
(and surely he will cache this descission).

There were network issues, like RIPE NCC told me.

Maybe its time to have a fallback MX for the subdomain itself ?
That are pointing to postgirl.ripe.net and postlady.ripe.net ?
So that no mailserver ever thinks to send mail directly to
to the A record ?
Just an idea ....


Kind regards, Frank

>
> On Wed, Apr 11, 2012 at 06:50:02PM +0530, Suresh Ramasubramanian wrote:
>> On Wed, Apr 11, 2012 at 6:32 PM, Frank Gadegast
>> <ripe-anti-spam-wg at powerweb.de>  wrote:
>>> will receives this could please make a
>>> telnet mamba.ripe.net 25
>>> from some IPs he own (best would be not using his or her usual IP,
>>> if he or she likes, lets see how big that problem really
>>> is, thats why I have to mail the most active people directly).
>>
>> suresh at frodo 03:54:25 :~$ telnet mamba.ripe.net smtp
>> Trying 2001:67c:2e8:11::c100:1328...
>> Trying 193.0.19.40...
>> telnet: Unable to connect to remote host: Connection refused
>>
>> Things seem to be RIPE for a change eh?
>
> So, what exactly causes the assumption that mamba is supposed to be
> reachable from the outside, on Port 25?
>
> $ host -t mx ripe.net
> ripe.net mail is handled by 250 postlady.ripe.net.
> ripe.net mail is handled by 200 postgirl.ripe.net.
>
> Now, obviously, expecting anti-spammers to understand about MX records
> and how to read Received: lines might be asking for a bit much...
>
> Gert Doering
>          -- NetMaster


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