Re: "SmartDNSHost" and "ErrCode = -117"

On Wed, 22 Sep 2010, [email protected] wrote:

> Hello Davide
> 
> Due to too many 'dns zone' with dns servers responding badly, causing normal
> xmail dns mx resolver to fail with "no domain or misconfigured dns servers",
> and since manual lookups using our internal dns give the good response, I
> tried to set SmartDNSHost
> 
> Then, doing so I have some problems sending to some 'sub' domains like the
> example bellow :
> 
> ErrCode   = -117
> ErrString = DNS recursion not available
> SMAIL SMTP-Send EDNS = "MOH.GOV.MY" SMTP = "XXXXXXXXX" From = "XXX@XXX" To =
> "[email protected]" Failed !
> SMTP-Error = "DNS recursion not available"
> SMTP-Server = "MOH.GOV.MY"
> 
> 
> SmartDNSHost entry is like this :
> "SmartDNSHost"	"aaa.bbb.ccc.ddd:udp;aaa.bbb.ccc.ddd:tcp"
> 
> The same internal dns server is used as a redirector dns server for our
> internal network, and any internal workstation can resolve the mx for this
> domain with success
> 
> What can be the cause ?

Looooong delay answer.... :)
When you add something to the SmartDNSHost, XMail believes that is a 
"friendly" DNS host, which can resolve recursive queries for it.
So XMail sets the recursion bit in the DNS query, which the error above 
show it being rejected by the server.


- Davide


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