IS 的人要求我阻止没有主题（空主题）的邮件，我正在使用MDaemon 9.5.1，其中一个给了我这个规则
[Rule015]
RuleName=no empy subject
Enable=No
ThisRuleCondition=All
ProcessQueue=LOCAL
Condition01=SUBJECT|reg exp|AND|^..+$|
Action01=skip rule|"1"
[Rule016]
RuleName=empty subject
Enable=No
ThisRuleCondition=All
ProcessQueue=BOTH
Condition01=SUBJECT|exists|AND|
Action01=send note|"to <$SENDER$>","from <[email protected]>","subject <Mail Rejected.>","x-flag=attach <$COPYOFMESSAGE$, MIME> -X","","Bla bla bla"
Action02=send note|"to <[email protected]>","from <[email protected]>","subject <Mail rejected notification.>","x-flag=attach <$COPYOFMESSAGE$, MIME> -X","","from:$SENDER$ ","to:$RECIPIENT$ ","subject: $SUBJECT$ ","date: $DATESTAMP$ ","time: $CURRENTTIME$"
Action03=delete|
我复制了这个cfrules.dat位于 MDaemon 安装目录的 app 文件夹中的表单文件，所以，他们说这是正确的设置，但是，这个规则并没有真正发挥作用，它阻止了没有主题的邮件和一些有主题的邮件一个主题，工人们现在抱怨很多，我想对安全和工人都满意。
所以，在这里需要帮助，我只是想阻止主题为空的邮件，但也可以按长度来阻止，直到现在我还没有成功
谢谢大家