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Date: Mon, 20 Apr 2015 12:17:19 +0200
From: Harald Becker <>
Subject: Re: Re: Security advisory for musl libc - stack-based buffer
 overflow in ipv6 literal parsing [CVE-2015-1817]

Hi Rich !

Sending mail still fails, see appended screen shot of Thunderbird message!

On 19.04.2015 05:44, Rich Felker wrote:
> On Sat, Apr 18, 2015 at 11:02:24PM +0200, Laurent Bercot wrote:
>> On 18/04/2015 21:56, Rich Felker wrote:
>>> 74177   IN A
>>> I don't see any CNAMEs involved. Can you show me where the CNAME
>>> is coming from?

As far as I know, the MX lookup has to result in an address, not a name. 
Not every software does recursive lookup (I know, this is bad, bad not 
my failure). And the qmail system of the provider is not an obsolete 
part of software.

>> There must be something poisoning caches somewhere, or you changed
>>  something recently.
> It was nearly a year ago that I last changed anything (and I think
> this was what I changed),

May be it was due to my complain on this, but as you told you fixed
that, I did not check this again.

> but it seems I forgot to update the sequence number in the SOA at
> the time,

Thats a horrible failure in the DNS system :(

> so perhaps some broken nameserver kept the old data cached ever since
> then as a result? I've updated the SOA now.

So let me try sending mail again ... (this message)

My problem is, all the lookup stuff, and used software is out of my 
control. I just send mail out over the official mail relay of my 
Internet provider. So I can't do much, when I send an SMTP MAIL TO and 
receive an error, complaining about unresolvable mail address. And 
United Internet is one of the biggest providers in Germany.


Download attachment "Mail_Error.png" of type "image/png" (29138 bytes)

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