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我已經在Debian擠壓上安裝了nullmailer vi aptitude。當我檢查日誌文件，我注意到，即使是成功的消息在mail.err登錄..nullmailer發送成功消息到mail.err？
任何想法，爲什麼，以及如何將其關閉？
問候
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貓/var/log/mail.err
Feb 27 17:12:07 localhost nullmailer[3528]: smtp: Succeeded: 250 2.0.0 4f4bab56-00012f6e Message accepted for delivery
Feb 27 17:13:06 localhost nullmailer[3583]: smtp: Succeeded: 250 2.0.0 4f4bab92-00012f70 Message accepted for delivery
Feb 27 17:14:07 localhost nullmailer[3607]: smtp: Succeeded: 250 2.0.0 4f4babcf-00012f71 Message accepted for delivery
默認syslog-配置：
...
mail.* -/var/log/mail.log
user.* -/var/log/user.log
#
# Logging for the mail system. Split it up so that
# it is easy to write scripts to parse these files.
#
mail.info -/var/log/mail.info
mail.warn -/var/log/mail.warn
mail.err /var/log/mail.err
...