寄到客戶的 YAHOO 信箱, 對方無法收到. 寄到大陸也寄不到.

檢查信件是否有寄出 ?

查詢 Mail Log, 

Mar 29 14:53:10 mail postfix/qmgr[8909]: D8C3BC98DC3: from=<臺灣@domain.com.tw>, size=262735, nrcpt=1 (queue active)
至 Mail Queue 確認目前信件送出失敗, 至 YAHOO 提出異常表單.



Mar 29 14:53:10 mail postfix/smtp[32602]: D8C3BC98DC3: to=<客戶@yahoo.com.tw>, relay=mx1.mail.tw.yahoo.com[203.188.197.119]:25, delay=11, delays=11/0.01/0.19/0, dsn=4.7.0, status=deferred (host mx1.mail.tw.yahoo.com[203.188.197.119] refused to talk to me: 421 4.7.0 [GL01] Message from (203.73.30.2) temporarily deferred - 4.16.50. Please refer to http://postmaster.yahoo.com/errors/postmaster-21.html)

Mar 29 14:56:27 mail postfix/smtp[328]: 9238BC98DB5: to=<大陸@domain.com>, relay=mail.domain.com[123.123.123.123]:25, delay=3260, delays=3259/0.01/0.56/0(註1), dsn=4.0.0, status=deferred (host mail.domain.com[123.123.123.123] refused to talk to me: 421 Sorry, SMTP server too busy right now (50); try again later)


(註1)
# Message delivery time stamps
# delays=a/b/c/d, where
# a = time before queue manager, including message transmission
# b = time in queue manager
# c = connection setup including DNS, HELO and TLS;
# d = message transmission time.