pflogsummのログの見方

正常なログ

receivedは受取件数
deliveredは配信件数
rejectedは受取拒否件数

 Postfix log summaries for

 Grand Totals
 ------------
 messages

     351   received
     583   delivered
       0   forwarded
       0   deferred
       0   bounced
     270   rejected (31%)
       0   reject warnings
       0   held
       0   discarded (0%)

   13805k  bytes received
   18816k  bytes delivered
     128   senders
      91   sending hosts/domains
      55   recipients
       8   recipient hosts/domains

異常なログ

アカウントの一つからスパムがばらまかれた場合。
deferredとboundedの件数が異常に多いです。
deferredは一時的に配信できなかった件数、
bouncedは送信先メールサーバーから受け取りを拒否された件数です。

Postfix log summaries for

Grand Totals
------------
messages

    414   received
   1073   delivered
      0   forwarded
    304   deferred  (8043  deferrals)
     92   bounced
    279   rejected (20%)
      0   reject warnings
      0   held
      0   discarded (0%)

   6523k  bytes received
   9856k  bytes delivered
    136   senders
    104   sending hosts/domains
    517   recipients
    104   recipient hosts/domains