First, the problem and demand elaboration:
1. In many enterprises, some users in the e-mail did not form a good habit, some time when the message is not filled with the topic, resulting in the recipient in the view of the message has an unnecessary impact;
2. Therefore, the mail administrator wants the user to send the empty subject message, the system will be directly to the sender to return the letter, and inform him/her that the empty subject mail is not allowed to send, you must add a theme before sending;
Ii. Objective: Do not allow Exchange users to send empty subject messages that will be returned when they send an empty subject message. When this configuration is implemented, users will receive the following refunds when they send an empty subject message:
Third, the method: Configure the transport rules, when the subject is empty, the system will be sent to reject the message sent to the sender, but the default content of the return is often ignored by the user, it is necessary to modify the DSN code to modify the contents of the return message.
Four, step:
1. In the Exchange Management console, navigate to the Organization configuration---Hub Transport---transport rules.
2. Create a new transport rule: Enter a name in the introduction (Prevent empty subject mail), comment, next;
3. In the condition, step 1, select the condition: Tick the ' Subject ' field to match the text pattern; Step 2: Click the Blue underlined text mode, enter "^$", then click "Add", click "OK" to close the dialog box, the next step;
4. In the operation, step 1, select action: Tick "send rejected messages to senders with enhanced status code"; Step 2: Click the blue underlined "rejected messages" type (you must type in English): Messages must has a subject in the Subject line or they is rejected. Click OK, and clicking on "Enhanced status code" with a blue underline, type (you must select an enhanced status code, 5.7.1 is the system default, but this value is not recommended. You can use an unused DSN code in 5.7.10-5.7.999) 5.7.228, OK, next;
5. In the exception, depending on whether the enterprise needs to choose whether or not to use this rule for some people, decide if you need to do this, if you want to do this for the company, you can click the next step directly;
6. After the new build you will find a warning message: "No custom DSN text is configured for enhanced status code ' 5.7.228 ', you can use the New-systemmessage cmdlet to customize DSN". Ignore this warning first click Done;
7. Create a new DSN text: Run the Exchange Management Shell with an administrator use the following command to customize the text of the 5.7.228 custom DSN code that you just used: New-systemmessage-dsncode 5.7.228- Text "Hello, please enter the subject of the message and then send the message, the system will reject the empty subject mail" (This is what you want the system to return the message)-internal $true-language Zh-hans. If you need to modify the text, you can use the following command to modify it: Set-systemmessage Zh-hans\internal\5.7.228-text "(Enter the text you want to re-modify the DSN code here)"
8. This completes the configuration of the prohibit empty subject mail transport rule.
Exchange Server 2010 is configured to prohibit the sending of empty topics
