How to Applying Subject for the External Mails

In this Article, We are going to see how to Add Subject for the external mails. when I say this, you will get one question why should we add the Subject for External Mails specifically.. Right?

There are lots of ways spammers are targeting users by using the Email address policies which are look genuine by nature but it is not.. We will talk in detailed in upcoming EOP (Exchange Online Protection) Category.

Okay.. Now will get in to the topic.. We can apply Subject to the External mails using the following procedure which will give extra caution for the internal recipients.

Open  Exchange Admin Center

1

Click on Create a new rule

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Type the Name for Transport Rule and Click on More Options

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Select Apply this rule if –> The Sender –> is External/Internal

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Select the Option Outside the Organization

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Select Do the following–> Prepend the subject of the message with

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Type the text that you want to display in the mails for the internal recipients

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We need to exclude signed mails which are send from external.why? Because the digitally signed mails should not get intercepted.

To do that, Select Except if –> The Message type is –> Signed 

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Once selected, save the rule and wait for 15 to 20 minutes to replicate the rule between the Exchange servers.

10

Check any mail coming from the external domains Now..

11

You can see that the Subject is added with the additional text which applied through the transport rule.

Author Bio

Radhakrishnan Govindan

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