ドコモやボーダフォンには無事にメールが届くが
ezwebに届かない（timeout）のはなぜでしょう？
同様に、zaq.ne.jpもtimeoutになる。


The original message was received at Fri, 11 Feb 2005 17:05:57 +0900
from [192.168.1.3]

----- Transcript of session follows -----
<hogehoge@ezweb.ne.jp>... Deferred: Connection timed out with lsean.ezweb.ne.jp.
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
554 5.3.0 forward: no home