[Cialug] SMTP Graylisting & Iowa Telecom
ken at bitsko.slc.ut.us
Sun Apr 5 14:38:42 CDT 2009
On Fri, Mar 20, 2009 at 8:39 AM, Claus <cniesen at gmx.net> wrote:
> Ken MacLeod wrote:
>> I've been seeing DNS resolution problems for sites looking up my MX
>> (e.g. mailing list bounces, mailer retries). Could be a more widespread
> Everything seems to check out for me, even the reverse resolution.
> What in particular about the DNS resolution gives you issues?
It's hard to pin down. secondary.com hosts my DNS records (ns1 and
ns2.secondary.com). When I query my records from some hosts without
specifying a DNS server I get results. If I query directly to ns1 and ns2
from hosts I have I get my records. Some other servers don't return any
results. Using DNS checking sites are mixed as well. Some are reporting
failures getting results from secondary.com.
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