On Mon, 2005-05-23 at 11:33, Arief Yudhawarman wrote:

> Hai milisers,
> 
> Saya heran karena ada salah satu anggota milis ini yg punya email
> dg domain narrada.com, saat dicek mx recordnya tidak ada :
> 
> [EMAIL PROTECTED] etc]# host -t mx narrada.com
> [EMAIL PROTECTED] etc]# host -t ns narrada.com
> narrada.com name server a.ns.joker.com.
> narrada.com name server b.ns.joker.com.
> narrada.com name server c.ns.joker.com.
> [EMAIL PROTECTED] etc]# dnsqr
> dnsqr: usage: dnsqr type name
> [EMAIL PROTECTED] etc]# dnsqr mx narrada.com
> 15 narrada.com:
> 29 bytes, 1+0+0+0 records, response, noerror
> query: 15 narrada.com

Sabar Pak Yudi :-)

Kalau suatu domain tidak punya MX tapi mempunyai resource record (RR) A
yang valid, maka record tsb otomatis dijadikan sebagai MX-nya.
Selengkapnya monggo dipun waos RFC2821 (Simple Mail Transfer Protocol),
bagian 5 Address Resolution and Mail Handling. 

Sedikit saya kutipkan sbb:

...
If no MX records are found, but an A RR is found, the A RR is treated as
if it was associated with an implicit MX RR, with a preference of 0,
pointing to that host
...

[EMAIL PROTECTED]:~$ date
Mon May 23 12:08:05 WIT 2005
[EMAIL PROTECTED]:~$ host narrada.com
narrada.com has address 202.67.9.34

Salam,

-- 
Rgds,
Asfihani


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