有人反應yahoo收不到信，我得到這樣的error message：
8E8335E817E 4063 Wed Apr 24 22:41:20 service@example.com
(delivery temporarily suspended: host mx1.mail.tw.yahoo.com[203.188.197.119] refused to talk to me: 553 5.7.1 [BL21] Connections will not be accepted from 123.110.42.X, because the ip is in Spamhaus's list; see http://postmaster.yahoo.com/550-bl23.html) user@yahoo.com.tw
一、查看訊息的網址
http://postmaster.yahoo.com/550-bl23.html
連到yahoo help，關鍵字我輸入「spamhaus」得到這篇：
Error: "550 5.7.1 [BLXX] Connections not accepted from IP addresses on Spamhaus" when sending email to Yahoo!
Description
This article will describe what actions you can take when presented with the following SMTP errors:
- "550 5.7.1 [BL21] Connections not accepted from IP addresses on Spamhaus PBL"
- "550 5.7.1 [BL22] Connections not accepted from IP addresses on Spamhaus SBL"
- "550 5.7.1 [BL23] Connections not accepted from IP addresses on Spamhaus XBL"
Resolution
In our continuing efforts to protect our users from unsolicited email, Yahoo! Mail does not accept SMTP connections from:
- Dynamic or residential IP addresses as determined by Spamhaus PBL (Error: 550 5.7.1 [BL21])
- IP addresses listed as spam sources on the Spamhaus SBL (Error: 550 5.7.1 [BL22])
- IP addresses listed as a possible open proxy or spam-sending Trojan Horse on Spamhaus XBL (Error: 550 5.7.1 [BL23])
If you are seeing this error message, please do not retry sending your message using the same IP address.
If you think that your IP address has been listed in error, you or your email administrator should contact Spamhaus. Once your IP is delisted by Spamhaus, Yahoo! Mail will automatically unblock your IP within 48 hours.
這裡面有說三種情況被列入spamhaus
二、連到spamhaus 的檢測頁
http://www.spamhaus.org/lookup/
打入我的ip發現被阻擋。
123.110.42.x is listed in the PBL, in the following records:
三、點選他附的連結
填具表單送出，到email中收信，將5-digit code輸入。得到
30分鐘後生效。
原文 2013-04-24 23:43:06