Thanks for answer. I think we could implement that behaviour and check if there will be performance issues. Anyone else interested?
-- Victor Shchukin ignit...@yandex-team.ru On Nov 25, 2013, at 17:21 , Wietse Venema <wie...@porcupine.org> wrote: > Wietse Venema: >> Wietse Venema: >>> Victor Shchukin: >>>> Hi every one! >>>> >>>> We use postfix 2.10.2 and IPv6 & IPv4 mode, so when remote domain >>>> doesn't has A record, postfix send's bounce, like "Name service >>>> error for name=[domain name] type=AAAA: Host found but no data >>>> record of requested type" this message a little bit confused our >>>> users. Is it possible to send bounce for type=A only? or for A and >>>> AAAA type? >>> >>> Sorry. Postfix reports only the last lookup error. In theory it >>> could be made configurable so it tries AAA first and A last. But >>> that may have performance implications. >> >> Your problem description did not say where the problem happens (in >> the SMTP client?) but if that is the case, then "smtp_address_preference >> = ipv6" will force IPv4 lookups to happen last, and your error messages >> may look prettier. > > Never mind. smtp_address_preference decides what host to connect to, > not what DNS query to make. > > Wietse
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