maillog 邮件日志中的这些信息是什么玩意啊？

Question

下面这些信息隔段时间就会蹦出来，是什么来着？ /var/log/maillog

Sep 21 13:09:04 mailserver postfix/anvil[22222]: statistics: max connection rate 101/60s for (smtp:192.168.0.2) at Sep 21 13:05:44
Sep 21 13:09:04 mailserver postfix/anvil[22222]: statistics: max connection count 1 for (smtp:192.168.0.2) at Sep 21 13:02:53
Sep 21 13:09:04 mailserver postfix/anvil[22222]: statistics: max cache size 3 at Sep 21 13:05:03
Sep 21 13:09:08 mailserver postfix/scache[24459]: statistics: start interval Sep 21 13:04:59
Sep 21 13:09:08 mailserver postfix/scache[24459]: statistics: domain lookup hits=9 miss=32 success=21%
Sep 21 13:09:08 mailserver postfix/scache[24459]: statistics: address lookup hits=0 miss=316 success=0%
Sep 21 13:09:08 mailserver postfix/scache[24459]: statistics: max simultaneous domains=3 addresses=6 connection=10

Answer 1

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