On W2K sp4

Using 1.25pre09 WITH smartdnshost for some spool files I have this error,
but it seems that in all cases (but not sure ...), second "auto" rsnd retry
go to the destination without problems (so it's not a real problem if second
try is ok, but it's strange ...)

================================================
[PeekTime] 1178704474 : Wed, 9 May 2007 11:54:34 +0200
<<
ErrCode   = -117
ErrString = DNS recursion not available
SMAIL SMTP-Send EDNS = "hp.com" SMTP = "mx.groupeab.com" From =
"[EMAIL PROTECTED]" To = "[EMAIL PROTECTED]" Failed !
SMTP-Error = "DNS recursion not available"
SMTP-Server = "hp.com"
>>
================================================

I verified the 'smartdnshost' dns server for the "recursive" option, it is
ok, recursion is enabled (it is a internal server that internal stations use
as they dns server too and no problem with dns lookup from any of them ...)

Manual MX lookup on the 'smartdnshost' for hp.com domain gives :
================================================
hp.com  MX preference = 30, mail exchanger = smtpx.hp.com
hp.com  MX preference = 10, mail exchanger = smtp.hp.com

smtpx.hp.com    internet address = 15.81.168.21
smtpx.hp.com    internet address = 15.81.176.20
smtpx.hp.com    internet address = 15.81.176.21
smtpx.hp.com    internet address = 15.45.89.154
smtpx.hp.com    internet address = 15.45.89.155
smtpx.hp.com    internet address = 15.45.89.156
smtpx.hp.com    internet address = 15.45.89.157
smtpx.hp.com    internet address = 15.81.168.20
================================================

Same result when doing the lookup from the xmail server configured to use
this dns server as the resolver on tcp/ip stack.

Mail was "auto" rsnd on second try to the MX pref 10 smtp.hp.com.

I had this spool error for some other destination domains too.
Could this be a dns 'timeout' on initial request from xmail ? then on second
retry, the dns server have some 'cache' from previous request then can ask
final dns servers quicker ?

How can I have more info from xmail when doing dns requests without having
to run a tcpdump (I don't know this specific error frequency so letting a
tcpdump running is not easy ...)

Francis
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