On 11 Aug 2005 21:06:15 -0700, "googleboy" <mynews44@xxxxxxxxx> wrote:
>I have a webserver (windows2000 running cdosys) that generates a lot of
>emails to a particular domain. This domain is of a customer that is
>directly connected and wishes me to configure the server with a hosts
>entry to point to the inside address of their mail server.
>
>I have done this, but tcpdumps on the firewall indicate that the
>system is still attempting to resolve DNS for this domain via our DNS
>server and then send the mail out via the public address. I can ping
>the name of the mail server and it seems to use the hosts entry fine,
>but the auto generated messages via iis do not do this.
>
>Please help me understand IIS/CDOSys DNS better so that I might
>understand why it is behaving this way.
IIS/SMTP will use the network DNSsettings, and I thought the hosts
first, but if you're having trouble why not add the customer's zone in
your DNS instead of hosts?
Re: MS Exchange and Changing ISPs. ... Whoever is performing DNS for your domain name will have a host name for your mail server, and has a Mail Exchange record pointed to that host name. ... You will also want the new ISP to create a reverse DNS record for this IP that reverse-resolves to mail.yourcompany.com. ... If that cache is said to be good for, say, 8 hours then it will take some time for that cached record to expire before their hosts ask your DNS provider for updated information. ... (microsoft.public.exchange.admin)
Re: my smtp server is very slow to accept connections today ... I can't send mail from PCs on the network...... Check that your nsswitch.conf has an appropriate hosts entry.... I use DynDNS to map a name to my ISP IP address and run a mail server at home. ... I tried several times with the two dns addresses in /etc/resolv.conf ... (Fedora)
IIS, SMTP, and DNS resolution ... This domain is of a customer that is ... entry to point to the inside address of their mail server.... system is still attempting to resolve DNS for this domain via our DNS ... the name of the mail server and it seems to use the hosts entry fine, ... (microsoft.public.inetserver.iis.smtp_nntp)
Re: Beating the spam filter ... ... A name that is not a machine's internal identity is more easily moved to refer to another machine, and that capability seems to be driving a lot of the interesting novelty in IT these days. ... You use names to refer to services where as I use names to refer to hosts and then use CNAMEs to refer service names to hosts. ... I think using the RFC-I lists for spam control is properly career-limiting for a mail admin, but people do use them, and the "bogus MX" list is probably the least problematic. ... That name carries a complex meaning to me and about a dozen other people, and it is in DNS from the viewpoint of tens of thousands of other machines. ... (comp.mail.sendmail)
Re: Cant see out to .co.uk from inside my .local domain (forward l ... and you do need to find out where the problem is in your DNS.... just add another entry in your hosts file referencing... network only from the server which I changed the hosts file for. ... us to resolve the issue with DNS. ... (microsoft.public.windows.server.sbs)
