How Do I Encrypt An Email In Outlook

How Do I Add A Secure Button In Outlook

Encrypt an email and prevent forwarding in Outlook

You can add the Encrypt button in the toolbar by clicking on the gear icon in the top right and clicking on All Outlook Settings. This opens a smaller window containing all the settings. There, click on Mail in the sidebar and then Customise actions in the smaller sidebar. Click and enable Encrypt in the Toolbar section.

How Your Recipient Opens Your Encrypted Email

If you have not yet obtained the certificate for this recipient, then Outlook will refuse to send the message. So if the message is sent, you can be fairly confident that the recipient has the required certificate to open your encrypted email. They may need to be on their desktop computer and open the message in Outlook . Your recipient’s Outlook application will automatically decrypt the message for your recipient.

If your recipient replies to this email message, the reply will automatically be encrypted .

Where To Buy S/mime Certificates For Outlook

You can buy S/MIME certificates from any reputable certificate authority or authorized dealer such as We currently offer the DigiCert S/MIME Certificate starting at $26.67/year. This is a steal at 30% off the vendor price! Its supported by Microsoft Outlook and all other top email clients.

If youre wondering how to encrypt an email in Outlook, as mentioned earlier, this will get it done. This is a business validated certificate that can be issued in two days or less. No waiting, no wasted time. This S/MIME certificate comes with a document signing and client authentication feature as well. This is your chance to secure your emails from the moment you open it all the way through to when your recipient does as well. All this and its backed by the top CA in the world, DigiCert!

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How To Encrypt An Email In Outlook Final Word

We have come to the end of our journey. I hope that you now know how to encrypt an email in Outlook. Remember, you have two options that you can choose from. You can:

  • Encrypt your emails using the Microsoft 365 Message Encryption tool, or you can
  • Use an email signing certificate to both encrypt and digitally sign your emails.
  • At the end of the day, whichever option you choose, the most important thing is that you are protecting yourself, your business, your customers and your employees from cybercriminals who want to intercept their sensitive information.

    The Significance Of Encrypting Outlook Emails

    How to Send Encrypted Email on 3 Major Email Platforms ...

    While discussing how to decrypt encrypted emails in Outlook PST file, it necessary to discuss the basic parts of encryption of Outlook message first. Outlook is a desktop based email client that is mostly used by the people concerned about their data security. Encryption is a popular and trusted way of securing information that is being exchanged via emails. With so many hacking and phishing attacks are going around these days, Outlook email encryption bears great importance in todays era.

    Even though encryption secures your emails, many users are worried about the decryption method. To guide them through this process, this write-up will talk about the Outlook email encryption and decryption process. By reading this post, users will also get knowledge about how to remove encryption from Outlook email messages efficiently in bulk. It briefs about how to encrypt an Outlook email and then it discusses the steps on how to decrypt encrypted emails in Outlook account.

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    How Do I Enable Encryption In Outlook

    To enable Outlook encryption using S/MIME or Microsoft 365 Message Encryption, users must go to File and click Options. From there, select Trust Center, then Trust Center Settings, and go to the Email Security tab.

    • For S/MIME, click on Settings from the Encrypted Email button, and under Certificates and Algorithms, select S/MIME certificate.
    • For Microsoft 365 Message Encryption, select the box that says Encrypt Contents and Attachments for Outgoing Messages.

    Enabling encryption using an add-in requires varying steps for installation and enabling encryption, depending on the software provider. Be sure to consult with them to get encryption enabled.

    Encrypted Outlook Emails Save The Additional Costs Of Setting Up An Encryption Server

    The setup of your email encryption service can go a long way in saving you money. If the email service you use includes the encryption feature, you will not have to incur additional costs setting up a parallel encryption server. Generally, Microsoft 365 Message Encryption for business is one of the most comprehensive encryption services for businesses, as we shall see in a later section.

    Money-saving during encryption can also be achieved in the sense that it safeguards your data from malicious hackers. Businesses have had to pay a lump sum due to hackers taking control of their email accounts. Such an incident recently happened to more than 30,000 U.S. organizations. You may also recall the $70 million ransom that Florida-based IT firm Kaseya was asked to pay after being hit by ransomware.

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    Improve Your Email Management To Increase Your Security

    Password theft or email snooping are not the only two traps users can fall into. Experts estimate that phishing accounts for 90 percent of data breaches.

    Since phishing email messages are essentially just malicious spam emails, you can effectively protect yourself against them by keeping your inbox organized and well managed.

    Instead of wasting hours every week manually sorting new emails, we recommend you use an automatic inbox cleaner like Clean Email. This powerful tool works with Gmail, Yahoo, and Outlook, and has multiple features that can take your email management to the next level.

    You can quickly organize older emails into easy-to-review bundles to free up storage space and make your inbox less cluttered, instantly unsubscribe from mass emailings, and automatically apply selected actions to future emails.

    Clean Email allows you to block unwanted senders and ensure that no future emails from them will ever reach your inbox. This feature is perfect for dealing with malicious senders who are smart enough to get past your spam filter, but you can use it to block any sender you want .

    With Clean Emails Privacy Guard, you can be confident that your personal information is safe and sound. The Privacy Guard feature in Clean Email will tell you if your mail account was compromised in any known data breaches and security incidents.

    Follow our guides on how to send an anonymous email and how email spammer gets your address.

    Are Attachments Also Encrypted

    How To Encrypt E-Mail Messages in Outlook

    All attachments are encrypted. Recipients who access the encrypted email via the Office Message Encryption portal can view attachments in the browser.

    Attachments behave differently after theyre downloaded depending on the encryption option used:

    • If you choose the Encrypt option, recipients with and Microsoft 365 accounts can download attachments without encryption from, the Outlook mobile app, or the Mail app in Windows 10. Other email accounts using a different email client can use a temporary passcode to download the attachments from the Microsoft 365 Message Encryption portal.

    • If you choose the Encrypt and Prevent Forwarding option, there are two possibilities:

    • Microsoft Office attachments such as Word, Excel or PowerPoint files remain encrypted even after theyre downloaded. This means that if the recipient downloads the attachment and sends it to someone else, the person they forwarded it to wont be able to open the attachment because they dont have permission to open it.

      Note that if the recipient of the file is using an account, they can open encrypted Office attachments on the Office apps for Windows. If the recipient of the file is using an Microsoft 365 account, they can open the file in Office apps across platforms.

    • All other attachments, such as PDF files or image files, can be downloaded without encryption.

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    Office 365 Encrypted Email

    Microsoft Office 365 Message Encryption allows you to easily send encrypted emails to your recipient. The advantage of OME is that you and the recipient dont need to install any certificate to encrypt or open the email.

    When you send an email with Office 365 Message Encryption, the recipient receives an email with only the subject. Depending on the mail client of the recipients, they can either simply open the email or the recipient can read the email and attachments in an online environment after an extra verification step.

    You will need to send the email from Outlook or Outlook Online, but the recipient doesnt need to have Outlook or an Office 365 subscription. Encrypted emails can be opened with any email client.

    To use Office 365 Message Encryption you will need to have one the following Microsoft 365 Plans:

    • Microsoft 365 Personal or Family
    • Office 365 Enterprise E3 or E5
    • Microsoft 365 Enterprise E3 or E5
    • Microsoft 365 Business Premium
    • Office 365 A1, A3, or A5

    Initial Setup For Office 365 Message Encryption

    To utilize OME, individuals must upgrade their subscription to a plan that offers OME. It is crucial to be aware that the widely popular Office 365 Business Essentials and Business Premium plans do not include OME. The only plans that include OME are Office 365 Enterprise E3 or E5, Microsoft Enterprise E3 or E5, Microsoft 365 Business, Office 365 A1, A3, or A5, or Office 365 Government G3 or G5. Another option would be to add Azure Information Protection Plan 1 to ones O365 subscription, but this can be extremely complicated and costly.

    Individuals looking to upgrade their Office 365 subscriptions should closely follow these steps:

    Visit, click Sign In, and log in with an Office 365 admin account. Click Admin . Next, click Billing and then click Subscriptions . Finally, click Switch Plans to upgrade the subscription.

    After upgrading, OME availability can be verified via one of the following methods:

    Visit and sign in to one of the accounts linked with the Office 365 subscription. Begin composing a new email. Encryption is enabled if the Encrypt button is not grayed out.Start/Re-start the devices Outlook application. This application should be Outlook ProPlus. Begin composing a new email. Click Options . The Encrypt button should be enabled.

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    Sending An Encrypted Message In Outlook Using S/mime

    Now that you have a Digital certificate on your computer, you can encrypt your email by following these steps:

    Step 1: First, you need to compose an email. To do this, click on New Email. This will open a new window that will allow you to write your email.

    Step 2: In this window:

  • Click on Options in the top bar
  • Click on Encrypt. There are several options you can select from. You can also move the Encrypt button to the Message tab to save you a few extra clicks.
  • Step 3: Write your email like you usually would. Once youve written it, click Send.

    If the recipient uses Outlook, they will receive the email with the subject alongside a lock icon. Once they double click on the email, Outlook will verify the recipient, and it will open just like a normal email.

    If the user uses another email service, the recipient will only see the subject with a button to read the message when they receive an email. When the user clicks on the Read the message button on the email screen, the link will take them to the Outlook online client, where they will need to verify the account.

    Depending on the recipients service, a one-time code can be sent to them. You can do this on most major email service providers like Gmail and Yahoo ID. After verifying the account, they will read the email and view its attachments using the Outlook environment. They can then reply back or forward the encrypted email depending on the options chosen by the sender.

    How To Encrypt Email

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    • 6 minute read

    Email encryption is the process of disguising the content of your email messages to protect them from being read by unwanted parties. Sensitive information such as social security numbers, passwords, login credentials and bank account numbers are vulnerable when sent via email.

    When encrypting emails, its important to encrypt all of them, not just the ones with sensitive information. If only some of your emails are encrypted, it is a red flag for a hacker and could make your inbox even less secure. They will only have to hack into a few emails rather than sift through hundreds to find data they can use. We explain how to encrypt emails on multiple providers and summarize our tips in an infographic.

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    Outlook Email Encryption Saves Employees The Hassle Of Getting Additional Programs For Security

    Performing email encryption on the email service platform saves employees the hassle of getting additional programs for their security. Instead, the responsibility of safeguarding emails fall within the domain of the email service provider.

    Practically speaking, that would mean faster organizational processes, which lead to increased productivity. For instance, if your staff goes through several steps to securely attach their files, all they have to do is type the message, instantly attach files, and hit the Send button.

    Thanks to a more reliable encrypted email services for Outlook, the improved efficiency has a direct impact on employees motivation to work. They can also confidently send you sensitive files via emails because they know these attachments are encrypted, and only authenticated persons can see them.

    Send Encrypted Email From Office 365

    Office 365 secure emails can be send using Outlook Online. The principal and technique are the same as with Outlook, only the menu looks a bit different.

  • Compose a new email in Outlook Online
  • Select Encrypt in the toolbar
  • Click Change Permissions if you also want to prevent forwarding of the email
  • Click Send when done.
  • If you dont see the encrypt button, then click on the 3 dots. You can also add the encrypt button to the bottom toolbar:

  • Select the gear icon and choose All Outlook Settings
  • Select Mail
  • Enable Encrypt.
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    How To Send Encrypted

    Now, to send an encrypted message to a recipient, you need to have their certificate . So assuming your contacts have procured their own email encryption certificate and have sent you a digitally signed email from their Outlook application, follow the steps below to add their certificate to your contact data.

    Add Recipient’s Certificate to Contact Data: These steps need to be followed for every email recipient who will receive encrypted email from you.

    • Open the digitally signed email received from that recipient .
    • In the top area where the “From” information for the message is shown, right– click the sender’s name and click Add to Outlook Contacts. If the Contact is already in your contacts, you may use the option to Edit/Update the contact instead of adding a new contact.
    • In the contact card that opens, click Certificates in the top ribbon. Note: In some older versions of Outlook, the full contact card may not open at this step – go to the People view in Outlook and then in the list of contacts shown, double click this contact to open their full contact listing. Once the full contact card is opened, you should be able to see the Certificates button in the top menu as shown below.
    • The contact card should then show you a list of certificates with at least one certificate for that contact and when you select that certificate, it will show you a message informing you that the certificate can be used to encrypt messages that you send to this contact.

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