The -bv flag will start Sendmail with a request to verify the user IDs provided in the Address parameterfield of the command.
—bv标志启动Sendmail并请求确认命令的Address参数字段中指定的用户ID。
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What I will mention is that I chose to store the target object as a field of the ArgumentProcessor class and implement the actual setting of a parameterfield within this class.