On Sun, Dec 14, 2003 at 09:27:57AM -0800, Jon Loeliger wrote:
|
| jdl.com has 4 MX servers that receive mail for jdl.com.
| Do they also send mail from jdl.com?
|
| I was curious as to what the other 4 receivers were, or how
| it came to this conclusion. In particular, there are several
| machine names in my jdl.com domain, among them (www, chrome, mail,
| ftp, cvs, loghost, etc). Why did it pick on www, chrome and mail?
|
20031214-12:48:37 mengwong(_at_)dumbo:~% dig 5.126.207.192.in-addr.arpa ptr
; <<>> DiG 9.2.1 <<>> 5.126.207.192.in-addr.arpa ptr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24381
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;5.126.207.192.in-addr.arpa. IN PTR
;; ANSWER SECTION:
5.126.207.192.in-addr.arpa. 1622 IN PTR jdl.com.
5.126.207.192.in-addr.arpa. 1622 IN PTR chrome.jdl.com.
5.126.207.192.in-addr.arpa. 1622 IN PTR www.jdl.com.
5.126.207.192.in-addr.arpa. 1622 IN PTR mail.jdl.com.
;; Query time: 2 msec
;; SERVER: 208.210.125.60#53(208.210.125.60)
;; WHEN: Sun Dec 14 12:48:53 2003
;; MSG SIZE rcvd: 123
|
| I reran the wizard this morning, basically expecting it to *confirm*
| that what I set up was sane. That is, if it thinks I should have
| records for those machines, it should have queried for them, seen
| them, an then said something like:
|
| This should also appear in DNS:
|
| chrome.jdl.com. IN TXT "v=spf1 a -all"
| jdl.com. IN TXT "v=spf1 a -all"
| mail.jdl.com. IN TXT "v=spf1 a -all"
| www.jdl.com. IN TXT "v=spf1 a -all"
|
| And they do, so this is good.
|
i'll make it say something more intelligent if the auxiliary records are
already there.
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