【求助】無法寄信到某些信箱



贊助商連結


shung0116
2005-03-14, 10:26 PM
請教各位學長,為什麼在寄信給某些信箱的時候,都會被退件呢?其退件訊息如下
錯誤訊息一:
> Hi. This is the qmail-send program at ektrontek.com.
> I'm afraid I wasn't able to deliver your message to the following
> addresses.
> This is a permanent error; I've given up. Sorry it didn't work out.
>
> <[email protected]>:
> Connected to 61.63.143.72 but sender was rejected.
> Remote host said: 550 5.0.0 Access denied
錯誤訊息二:
Hi. This is the qmail-send program at ektrontek.com.
> I'm afraid I wasn't able to deliver your message to the following
> addresses.
> This is a permanent error; I've given up. Sorry it didn't work out.
>
> <[email protected]>:
> Sorry, I couldn't find a mail exchanger or IP address. (#5.4.4)

煩請各位學長指點
謝謝

贊助商連結


阿 土
2005-03-14, 10:37 PM
看這一行:I couldn't find a mail exchanger or IP address

然後去查到 iecnet.com.tw 的 MX 記錄為 : mail.iecnat.com.tw

iecnet.com.tw preference = 10, mail exchanger = mail.iecnat.com.tw

查 mail.iecnat.com.tw 卻查不到 IP , 那當然寄不到


*** ns1.so-net.net.tw can't find mail.iecnat.com.tw: Non-existent host/domain

*** hntp1.hinet.net can't find mail.iecnat.com.tw: Non-existent host/domain

shung0116
2005-03-15, 10:25 PM
可是我試著用公司的對外信箱[email protected]來寄到這些信箱,卻沒被退件了,這是否代表我原本的信箱有問題呢?(可能是MX或正反解有問題)
煩請各位學長指點
謝謝

阿 土
2005-03-15, 11:14 PM
剛查 , 連該 domain name 的 dns server 都找不到了...


nslookup iecnat.com.tw
Server: hntp1.hinet.net
Address: 168.95.192.1

*** hntp1.hinet.net can't find iecnat.com.tw: Non-existent host/domain

那問題跟你無關 , 跟該 domain name 的擁有者有關
他如果改來改去 , 那當然有時可收,有時不可收
你可以請他 Check 一下

shung0116
2005-03-16, 12:55 PM
不好意思,我檢查公司的DNS,卻有錯誤訊息,如下所示:
61.221.84.77 PTR record: ektrontek.com. [TTL 43200s] [A=210.64.206.61] *ERROR* A record does not point back to original IP.
為什麼會有這樣的情況呢?公司的網域(210.64.206.61)為主機代管,但MAILSERVER則是在自己公司中(61.221.87.44),可是我已請代管公司把MX RECORD轉到MAILSERVER的IP了,為什麼還會有這樣的情況呢?
煩請各位學長指點
謝謝

b0913
2005-03-16, 01:17 PM
看了一下你少了a紀錄.......
a還是在210.64.206.61這個ip上.....

阿 土
2005-03-16, 02:00 PM
公司的網域(210.64.206.61)為主機代管,但MAILSERVER則是在自己公司中(61.221.87.44)
我已請代管公司把MX RECORD轉到MAILSERVER的IP了,為什麼還會有這樣的情況呢?

你可以自己利用 nslookup 指令查詢即知
對方把 mail mail.ektrontek.com 指定到 61.221.84.77 並非是 61.221.87.44


nslookup -q=mx ektrontek.com
Server: hntp1.hinet.net
Address: 168.95.192.1

ektrontek.com preference = 0, mail exchanger = mail.ektrontek.com


nslookup mail.ektrontek.com
Server: hntp1.hinet.net
Address: 168.95.192.1

Name: mail.ektrontek.com
Address: 61.221.84.77

shung0116
2005-05-15, 01:33 PM
不好意思,請教各位學長是否有遇過下列的退件訊息,
This is an automatically generated Delivery Status Notification.

Delivery to the following recipients failed.

[email protected]

→我是有模擬測試,可是都不會有這樣的錯誤訊息,就算我重新申請一個新的國外hotmail帳號,也可以正常收到信件,而且我確定這個信箱確實有這個帳號。為什麼會出現這樣的訊息呢?
煩請各位學長指點
謝謝