退信問題

[bensheng]

請問大大,小弟寄到yahoo的信,很容易被退信..如果是對方伺服器太忙碌,那會不會太久了點...我觀察了半天的時間..95%寄到yahoo的信都被退信...這有可能是我這邊設定的問題嗎??
以下是截取觀察一下午的後面一小部份...
[2006/4/24 下午 03:53:10] 傳送郵件從 [email protected] 到 [email protected](203.84.195.1) 失敗 (451 mta186.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].)
[2006/4/24 下午 04:02:27] 重新傳送郵件從 [email protected] 到 [email protected](202.43.200.11) 成功 2160bytes ( 2.2 KB/s)
[2006/4/24 下午 04:03:14] 重新傳送郵件從 [email protected] 到 [email protected](203.84.195.1) 失敗 (451 mta177.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].)
[2006/4/24 下午 04:18:02] 傳送郵件從 [email protected] 到 [email protected](202.43.200.11) 失敗 (451 mta160.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].)
[2006/4/24 下午 04:18:34] 傳送郵件從 [email protected] 到 [email protected](202.43.200.11) 失敗 (451 mta121.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].)
[2006/4/24 下午 04:42:46] 重新傳送郵件從 [email protected] 到 [email protected](202.43.200.11) 失敗 (451 mta121.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].)
[2006/4/24 下午 04:42:25] [3724] 192.1.2.200 - 郵件內容已收到 (To:[email protected]) 1142 bytes ( 71.4 KB/s)
[2006/4/24 下午 04:42:25] 回覆無效的信件訊息到 [email protected] 成功
-------------------------------------------------------------
退回的信件裡分別有以下這兩種訊息
主旨:Unavailable Delivery : Deliver Timeout
Response message:
To: [email protected]
Subject: 1-2
Reason: Timeout for attempting to re-send in 2 times.
Remote host: 202.43.200.11
Details: 451 mta121.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].

主旨:Unavailable Delivery : Mail was rejected
Response Message :
To: [email protected]
Subject: 1-5
Reason: 451 mta121.mail.tpe.yahoo.com Resources temporarily unavailable. Please try again later [#4.16.5].
Remote host: 202.43.200.11


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