>-----Message d'origine----- >De : [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] la part de Davide Libenzi >Envoy=E9 : mercredi 9 mai 2007 22:09 >=C0 : '[email protected]' >Objet : [xmail] Re: Another DNS question about 1.25pre09 not in 1.24 > > >On Wed, 9 May 2007, CLEMENT Francis wrote: > >>=20 >> On W2K sp4 >>=20 >> Using 1.25pre09 WITH smartdnshost for some spool files I=20 >have this error, >> but it seems that in all cases (but not sure ...), second=20 >"auto" rsnd retry >> go to the destination without problems (so it's not a real=20 >problem if second >> try is ok, but it's strange ...) >>=20 >> = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
>> [PeekTime] 1178704474 : Wed, 9 May 2007 11:54:34 +0200 >> << >> ErrCode =3D -117 >> ErrString =3D DNS recursion not available >> SMAIL SMTP-Send EDNS =3D "hp.com" SMTP =3D "mx.groupeab.com" From = =3D >> "[EMAIL PROTECTED]" To =3D "[EMAIL PROTECTED]" Failed ! >> SMTP-Error =3D "DNS recursion not available" >> SMTP-Server =3D "hp.com" >> >> >> = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= >>=20 >> I verified the 'smartdnshost' dns server for the "recursive"=20 >option, it is >> ok, recursion is enabled (it is a internal server that=20 >internal stations use >> as they dns server too and no problem with dns lookup from=20 >any of them ...) >>=20 >> Manual MX lookup on the 'smartdnshost' for hp.com domain gives : >> = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= >> hp.com MX preference =3D 30, mail exchanger =3D smtpx.hp.com >> hp.com MX preference =3D 10, mail exchanger =3D smtp.hp.com >>=20 >> smtpx.hp.com internet address =3D 15.81.168.21 >> smtpx.hp.com internet address =3D 15.81.176.20 >> smtpx.hp.com internet address =3D 15.81.176.21 >> smtpx.hp.com internet address =3D 15.45.89.154 >> smtpx.hp.com internet address =3D 15.45.89.155 >> smtpx.hp.com internet address =3D 15.45.89.156 >> smtpx.hp.com internet address =3D 15.45.89.157 >> smtpx.hp.com internet address =3D 15.81.168.20 >> = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= >>=20 >> Same result when doing the lookup from the xmail server=20 >configured to use >> this dns server as the resolver on tcp/ip stack. >>=20 >> Mail was "auto" rsnd on second try to the MX pref 10 smtp.hp.com. >>=20 >> I had this spool error for some other destination domains too. >> Could this be a dns 'timeout' on initial request from xmail=20 >? then on second >> retry, the dns server have some 'cache' from previous=20 >request then can ask >> final dns servers quicker ? >>=20 >> How can I have more info from xmail when doing dns requests=20 >without having >> to run a tcpdump (I don't know this specific error frequency=20 >so letting a >> tcpdump running is not easy ...) > >Ohh, in the case of SmartDnsHost all is *very* easy. XMail=20 >just prepare a=20 >query asking for recursion and shoot it to the SmartDnsHost.=20 >The *only*=20 >way XMail returns "recursion not available" is if the=20 >SmartDnsHost return=20 >the proper bit indicating that is not granting recursion=20 >capabilities to=20 >the host. > > > >- Davide > > >- So, how can I test for this 'proper bit' because the dns server, as I = can see its configuration, is configured to allow recursion (and this = 'allow' is not based on ip filtering/mask/...) ? What I don't understand is how can xmail then send the mail after = second rsnd (most of the time, except for my second example in another mail). I don't understand too who xmail can have the mx records ok in its = cache. Does xmail failover with some other mecanism when this error occures ? Francis - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
