Define mail flow rules for triggering message encryption by using the Exchange admin center (EAC). You create mail flow rules to encrypt email messages with Microsoft Purview Message Encryption. Set up rules to encrypt any outgoing email messages, and remove encryption from encrypted messages coming from inside your organization or from replies to encrypted messages sent from your organization. Automatically encrypt email messagesĪdmins can create mail flow rules to automatically protect email messages that are sent and received from a campaign or business. You can learn all about setting up email encryption at Email encryption in Microsoft 365. For more information, see Send, view, and reply to encrypted messages in Outlook for PC. You can also send an encrypted message by selecting the Protect button in Outlook on the web. To send an encrypted message from Outlook 2013 or 2016, or Outlook 2016 for Mac, select Options > Permissions, then select the protection option you need. If you want to encrypt a message that doesn't meet a pre-defined rule or your admin hasn't set up any rules, you can apply a variety of different encryption rules before you send the message. When you set a label, the label persists with your email, even when it's sent - for example, by appearing as a header to your message. Sensitivity labels: If your organization requires it, you can set up sensitivity labels that you apply to your files and email to keep them compliant with your organization's information protection policies. Any encryption rules will be applied automatically. For instance, your admin can create a rule that encrypts all messages sent outside your organization or all messages that mention specific words or phrases. Your admin can define rules to automatically encrypt messages that meet certain criteria. Any recipient without the corresponding private key, however, sees indecipherable text. Only the recipient who has the private key that matches the public key used to encrypt the message can decipher the message for reading. When you encrypt an email message, it's converted from readable plain text into scrambled cypher text. Best practicesīefore individuals send email with confidential or sensitive information, they should consider turning on:Įncryption: You can encrypt your email to protect the privacy of the information in the email.

The objective here is to help protect this sensitive information by ensuring everyone is using sensitivity labels so that email recipients treat the information with the utmost sensitivity.

Your data and information is important, and often, confidential.

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