----- The following addresses had permanent fatal errors -----
<sunos◎saita.ma>
　　(reason: 451 qq trouble creating files in queue (#4.3.0))

　 ----- Transcript of session follows -----
... while talking to saita.ma.:
>>> DATA
<<< 451 qq trouble creating files in queue (#4.3.0)
<sunos◎saita.ma>... Deferred: 451 qq trouble creating files in queue (#4.3.0)
Message could not be delivered for 1 day
Message will be deleted from queue
　　⇒ 鯖障害?

http://saita.ma/
　　⇒ IIS?