SMTPAppender

SMTP（Simple Mail Transfer Protocol）即简单邮件传输协议,它是一组用于由源地址到目的地址传送邮件的规则，由它来控制信件的中转方式。

http://logback.qos.ch/manual/appenders.html#SMTPAppender

<configuration>

    <!-- 错误日志发送邮件 -->
    <appender name="errorEmail" class="ch.qos.logback.classic.net.SMTPAppender">
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <smtpHost>${mail.smtp.host}</smtpHost>
        <smtpPort>${mail.smtp.port}</smtpPort>
        <username>${mail.username}</username>
        <password>${mail.password}</password>
        <from>${mail.from}</from>
        <to>${log.mail.to.1}</to>
        <to>${log.mail.to.2}</to>
        <subject>${CONTEXT_NAME} - ${HOSTNAME}</subject>
        <layout class="ch.qos.logback.classic.html.HTMLLayout">
            <pattern>%date %-5level %logger{35} - %message%n</pattern>
        </layout>
    </appender>


    <root level="INFO">
        <appender-ref ref="errorEmail" />
    </root>
</configuration>

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