Oh what a day from hell...... How do you pick a good DNS server? I
had one from Verio that I've used for the last couple years
161.58.158.113
Ipswitch Techs had me try one of there's while we were testing all
the various problems. Worked well with theirs so I assumed that mine
was not too good... I called Verio where my servers are hosted and
they could not tell me much information about the DNS IP I posted
above. They suggested that because it was a cache DNS server it looks
like it may not always be available and maybe retired soon... Quite
frankly I think the Gal knew less than I did about the server... None
the less I tracerouted to the primary dns servers (ns1 and
ns2 .DN.net) and used these in the SMTP area of iMail 8.21
These worked poorly and allowed my queue to grow to over 100 emails
and stay at that point . Restarting the SMTP server would clear half
of them but then back to the same state... People started calling
because there were errors such as "553 Requested action not taken:
Relaying not permitted" or "553 sorry, that domain isn't in my list
of allowed rcpthosts (#5.7.1)"... I switched back to the IP above and
it immediately cleared the cache and now hovers around 7 or 8 emails
pending. Why does one DNS server IP work better than others?
207.153.206.126 and 161.58.158.45 (bound to ns1 and 2 as mentioned
above) failed to perform worth while.
You would think a company like Verio would have great DNS servers? Am
I missing something? I'm thinking of moving to Rackspace at the end
of the month and hope they can help.
Regards,
Steve
On Sep 9, 2005, at 10:49 AM, Darin Cox wrote:
Ok, so according to this the mail server could not connect to the
primary
rackspace.com mail server.
According to http://dnsreport.com/tools/dnsreport.ch?
domain=rackspace.com,
everything looks good for rackspace.com, so this may have been a
temporary
issue with the rackspace.com mail server, or connectivity between your
server and theirs.
Darin.
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