Re: Dealing with outages

2013-09-11 Thread li...@rhsoft.net
Am 11.09.2013 20:19, schrieb Jeroen Geilman: > On 09/09/2013 09:27 PM, Wietse Venema wrote: >> Postfix does a hard bounce when the DNS server replies that the >> name has no MX record AND the DNS server replies that the name has >> no A record, AND (if Postfix IPv6 support is on) the DNS server >

Re: Dealing with outages

2013-09-11 Thread Wietse Venema
Jeroen Geilman: > On 09/09/2013 09:27 PM, Wietse Venema wrote: > > Postfix does a hard bounce when the DNS server replies that the > > name has no MX record AND the DNS server replies that the name has > > no A record, AND (if Postfix IPv6 support is on) the DNS server > > replies that the name has

Re: Dealing with outages

2013-09-11 Thread Jeroen Geilman
On 09/09/2013 09:27 PM, Wietse Venema wrote: Postfix does a hard bounce when the DNS server replies that the name has no MX record AND the DNS server replies that the name has no A record, AND (if Postfix IPv6 support is on) the DNS server replies that the name has no record. Does that mea

Re: Dealing with outages

2013-09-09 Thread Roman Gelfand
In case, of hard bounce, does this include mx record not being found but domain name exist? On Mon, Sep 9, 2013 at 1:44 PM, Wietse Venema wrote: > Roman Gelfand: >> It appears that by default if target domain can't be dns resolved, >> there is a local hard bounce. > > Rubbish. Postfix does a hard

Re: Dealing with outages

2013-09-09 Thread /dev/rob0
On Mon, Sep 09, 2013 at 12:30:43PM -0400, Roman Gelfand wrote: > It appears that by default if target domain can't be dns > resolved, there is a local hard bounce. Depends. Was it a temporary DNS failure: SERVFAIL or timeout? Or, rather, was it a permanent error like NXDOMAIN? Also, this does no