Re: FWD: Popularity-contest submission doesn't go through to apenwarr-survey@klecker.debain.org
On Mon, 30 Apr 2001, Matthijs Melchior wrote:
> > Here it's addressed to apenwarr-survey@debian.org. So I would assume
> > that something on myhostname.my.isp.com is rewriting the email
> > @debian.org to @klecker.debian.org. And I don't think that this
> > localpart apenwarr-survey is available in the sub-domain
> > klecker.debian.org but instead in the domain debian.org. So I would
> > suggest that the configuration of this mail-server myhostname.my.isp.com
> > will be checked to see why suddenly the rcpt-to changes.
> Please look at the following:
> $ host -v -t MX -A debian.org
> Query about debian.org for record types MX
> Found 1 address for debian.org
> Checking debian.org address 198.186.203.20
> !!! debian.org address 198.186.203.20 maps to klecker.debian.org
> $
> So, mail to debian.org is the same as mail to klecker.debian.org ....
I'm not sure what the above arguments to 'host' are supposed to do, but the
conclusion you've drawn is incorrect. The fact that the debian.org A record
points to the same place as the klecker.debian.org A record does /not/ mean
that 'mail is the same':
$ dig debian.org mx
; <<>> DiG 9.1.0 <<>> debian.org mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39344
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 9, ADDITIONAL: 10
;; QUESTION SECTION:
;debian.org. IN MX
;; ANSWER SECTION:
debian.org. 10800 IN MX 10 klecker.debian.org.
debian.org. 10800 IN MX 0 master.debian.org.
debian.org. 10800 IN MX 5 murphy.debian.org.
<snip>
$ dig klecker.debian.org mx
; <<>> DiG 9.1.0 <<>> klecker.debian.org mx
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22034
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 9, ADDITIONAL: 10
;; QUESTION SECTION:
;klecker.debian.org. IN MX
;; ANSWER SECTION:
klecker.debian.org. 10800 IN MX 0 klecker.debian.org.
klecker.debian.org. 10800 IN MX 10 master.debian.org.
So mail for klecker goes to klecker, but mail for debian.org goes to /master/.
Also, even if the final MX for klecker.debian.org and debian.org was the same,
remote mail servers should not be rewriting mail addresses for one and turning
them into the other! Imagine the havoc this would play on mail servers that
do virtual-hosting of email for multiple domains.
Steve Langasek
postmodern programmer
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