[X-Servers] Mail Server Mailing List

Lydia Osborne osborne at wc.edu
Mon Apr 10 14:06:14 PDT 2006

Added an MX and Reverse lookup for kyrie to all DNS servers. It looks 
like the info has replicated but I'm still getting bounces. This is the 
error message I get when I try to send to that domain from kyrie

<jjaworski at ccccd.edu>: Host or domain name not found. Name service error for
    name=server87.appriver.com type=A: Host not found


Wing Wong wrote:
> On 4/10/06, Lydia Osborne <osborne at wc.edu> wrote:
>> We are currently migrating from Exchange 5.5 to an OS X mail server. I
>> am having odd issues with sending e-mail to various domains that folks
>> on the Exchange side aren't having. One staff member on the old server
>> can send an e-mail to xxx domain while her co-worker on the new server
>> gets a bounce back of Host Not Found when he tries to send. Is there
>> something we haven't configured to cause this?
>> Thanks!
>> Lydia
> Hi Lydia,
> Some questions:
> 1) Do both the new and old servers use the same DNS server?
> The DNS information might be out of sync or lagging. Just need to make
> sure they are serving up compatible/similar information. If xxx domain
> is only hosted by a certain DNS server and the exchange server is
> getting it from that one, but the MacOSX one isn't, then there is a
> potential spot for the problem.
> 2) Does the Exchange server have any internal hard-coded host->IP
> entries or routing rules for the domains with the problem?
> Ie, domain masquerading for xxx domain on the exchange server, but not
> on the MacOSX server?
> 3) Is there any host information which is residing in Active Directory
> or LDAP/etc that isn't being accessed or referenced by the new host?
> I second the idea that DNS is the cause of the problem. Since there
> are potentially other host resources that exchange could be
> referencing, it is worthwhile to determine if there are additional
> rules that may have been missed.
> Wing
> Wing Wong
> wingedpower at gmail.com
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