On Wed, 1 Sep 2004 17:10:40 +0200, Esteve Valent� wrote:

> Uso el smtp de ya.com, per� tamb� pels altres
> missatges, no?

[EMAIL PROTECTED]:~> host smtp.ya.com
smtp.ya.com has address 62.151.4.43

Est� a algunes llistes "negres":
http://www.dnsstuff.com/tools/ip4r.ch?ip=62.151.4.43

Tampoc t� ressoluci� inversa (treure el nom de host a partir de la IP)
i alguns servidors de dest� no volen missatges de servidors que no
s'identifiquen.  Amb el comandament dig ho confirmo:

[EMAIL PROTECTED]:~> dig -x 62.151.4.43

; <<>> DiG 9.2.3 <<>> -x 62.151.4.43
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34985
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;43.4.151.62.in-addr.arpa.      IN      PTR

;; AUTHORITY SECTION:
4.151.62.in-addr.arpa.  86400   IN      SOA     dns.ya.com.
hostmaster.ya.com. 2004081900 28800 14400 604800 86400

;; Query time: 96 msec
;; SERVER: 80.58.32.33#53(80.58.32.33)
;; WHEN: Wed Sep  1 17:33:51 2004
;; MSG SIZE  rcvd: 99

Hauria d'haver-hi una "answer section", com aquest que s� t�
ressoluci� inversa (IP > nom del host)

[EMAIL PROTECTED]:~> host ya.com
ya.com has address 62.151.2.100

[EMAIL PROTECTED]:~> dig -x 62.151.2.100

; <<>> DiG 9.2.3 <<>> -x 62.151.2.100
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27038
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;100.2.151.62.in-addr.arpa.     IN      PTR

;; ANSWER SECTION:
100.2.151.62.in-addr.arpa. 86395 IN     PTR     ya.com.

;; AUTHORITY SECTION:
2.151.62.in-addr.arpa.  86395   IN      NS      dns2.ya.com.
2.151.62.in-addr.arpa.  86395   IN      NS      dns.ya.com.

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Wed Sep  1 17:37:46 2004
;; MSG SIZE  rcvd: 100


-- 
Benjam�
http://weblog.bitassa.net



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