Kyle Wheeler wrote:
On Sunday, May 20 at 10:40 PM, quoth Samuel Murez:
Kyle Wheeler wrote:
On Sunday, May 20 at 06:46 PM, quoth Samuel Murez:
Maybe the errors I'm seeing in qmail are due to qmail getting the
same result as me on my first try. What would make these kind of
queries only work on the second and subsequent tries ?
What do your dns logs say?
I'm sorry, which dns logs are you referring to ? Where can I find them ?
You said that when querying your djbdns server, the result of the
first query was failure, though subsequent queries succeed. Thus, I am
interested in your djbdns logs that show that failed query.
The question to answer here is: where is the failure occurring? The
failure must lie in one of three places: either the program making the
query (dnsq) is broken, or the program doing the lookup (djbdns) is
broken, or the server you're asking for data is broken. Since dnsq
doesn't have logs, and we don't have access to hotmail.com's DNS logs,
I think it's fairly reasonable to assume that I'm talking about the
djbdns logs (i.e. the only dns logs that you have access to). From
there we may be able to figure out what's going on. They may not help,
but they're the best place to start.
Thanks for your answer. Sorry to be so slow, I haven't worked with dns
before.
From what I can tell, I don't have djbdns correctly installed and
configured. It is my understanding that though it helps with the cname
deferral problem, it's not strictly necessary for qmail. Is this the case ?
So far, I haven't needed to run my own dns server.
Just to get a handle on my issue here (please correct me where I'm wrong) :
my qmail is not sucessfully sending mail to many large mail servers that
we can presume are not all having problems at the same time.
the errors, can't establish an smtp connection, and cname deferral,
could both be due to a problem with dns lookups ?
this problem is happening now though it wasn't occuring before, during a
few years where my mail setup was working fine, and I made no
configuration changes.
we're now trying to figure out what's happening during the dns lookups,
that work fine on the 2nd try from the command line.
Do you know if when a dns lookup is requested by qmail, it would be done
only once, or a second time if it fails ?
--Sam
|