>-----Message d'origine----- >De : [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED] la part de Davide Libenzi >Envoyé : dimanche 28 mai 2006 18:17 >À : [email protected] >Objet : [xmail] Re: xmail DNS problem : First sample > > > >On Sun, 28 May 2006, Rob Arends wrote: > >> So Davide, can you explain.... >> When the TTL expires and Xmail tries the A record, why then >for ALL the >> retries, does xmail attempt to send to the same server? >> If the xmail re-resolved the domain for each retry, wouldn't >it get the >> correct MX, now that the SmartDNShost has cached either NS/MX for the >> domain. >> I totally understand xmail can't do much if the smartdnshost >can't resolve >> the MX, however usually it can on the second attempt, so >xmail should be >> able to send the email on the second try. > >The A-record try is *always* a fallback, and it *never* >cached, and this >is a fact. So if XMail continue to try to the A record, it >means that the >network condition that stops it to resolve the MX persist. > > >- Davide >
For the sample I provided (ifrance.com), the mail was still in xmail queue and at time I run'd the nslookup from the xmail server itself to find the mx, and I got a valid 'authoritive' response with the mx entry with no timeout, but at next retry the mail delivery attempt was done on the A record ... The same think for many others mails waiting for a good mx entry in the xmail queue ... My xmail server is definitively not lucky on mx lookups (with or without smartdnshost ...) ! I will get a try on Tom Banting patch ASAP ... 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]
