Jake Vickers wrote:
> Stanimir Markov wrote:
>> Hi everyone,
>>
>> this is my first post to this list, so I'm going straight to the problem:
>>
>> from several days, I see the following message in my
>> /var/log/qmail/send/current
>>
>> 2007-02-14 13:41:00.040018500 delivery 104: deferral:
>> CNAME_lookup_failed_temporarily._(#4.4.3)/
>>
>> >From what I've researched on the web
>> (http://www.faqts.com/knowledge_base/view.phtml/aid/28942
>> <http://www.faqts.com/knowledge_base/view.phtml/aid/28942>) , this
>> issue is dated back in 2003-2004, and should be fixed already in the
>> current toaster version. I've upgraded my qmailtoaster on 25 Nov 2006
>> for the last time.
>>
>> This issue happens, because I'm using my ISP name servers (BIND 9.3.3)
>> witch returns some additional records for related to the DNSSEC , and
>> the ANY query size for the particular domain that causes me troubles
>> is ;; MSG SIZE  rcvd: 926
>>
>> I've downloaded the qmail-toaster-1.03 (1.3.12) rpm , and it looks
>> like the following patch is not included :
>>
>> "Christopher K. Davis has a patch to accept oversize DNS packets
>> <http://www.ckdhr.com/ckd/qmail-103.patch> which works on both qmail's
>> dns.c and tcpserver's dns.c. If you don't want to patch qmail, you can
>> ameliorate the problem somewhat using djbdns
>> <http://www.tinydns.org/>, which returns only the records you ask for,
>> making for a smaller ANSWER section."
>>
>> Or at least I could not find it anywhere ... the SPECS file however
>> says it's there since build-05.

> Hmm. The patch was in there by default from last I knew. It may have
> been forgotten to be put in. I'll let the powers-that-be that maintain
> the package answer that one.

I'm sure that EE/Nick will fill us in on this one.

> I had this problem a long time ago with a couple domains; sympatico.ca
> and another one (don't remember). What I did to fix this temporarily
> (which is in fact still in place 3 years later) was to add a SMTP route
> for the domain that is having the CNAME errors:
> 
> [EMAIL PROTECTED] ~]# cat /var/qmail/control/smtproutes
> sympatico.ca:209.226.175.87
> 
> I also wrote up a wiki page about it
> (http://wiki.qmailtoaster.com/index.php/Smtproutes). It does have
> drawbacks; since you're targeting only 1 server for that domain, if that
> particular server happens to be down it won't try any others, etc. But
> QMail has it's own "quirks" with SMTP anyway - it only tries 1 SMTP
> server; if it gets an answer (even an error), it does not move up to the
> next MX record in DNS anyway, just keeps at the one that gave it AN answer.
> Hope that helps some.

That's certainly nice to know, Jake. Will you create a flyspray task for
this quirk? Then we'll at least have some record of it.



-- 
-Eric 'shubes'

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