Encrypted email is crucial for any business that has sensitive information that needs to stay private. It protects banking details, company data, personal information, and more from unauthorized parties.

Email encryption uses public key cryptography, which means that each recipient has a pair of keys-one private and one public. This ensures that only the intended recipient can decrypt the message.

Gmail

Gmail is one of the world’s most popular email clients, with 1.8 billion users worldwide and 18% of all email client market share. This popularity can be attributed to its ease of use, cutting-edge features, and reliable service. But it also has some downsides, including ads based on your email contents, and a cluttered inbox.

Fortunately, Gmail offers secure emailing and can even keep your message content private. However, it uses standard encryption by default, so your messages aren’t truly private unless you pay for a paid Gmail account or enable stronger encryption.

By default, all outgoing messages are encrypted via TLS, which is the standard encryption protocol used by most major email providers. This makes it difficult for someone to intercept a message while it’s being sent, but it doesn’t prevent Google from scanning your messages and passing them on to third parties.

You can enable enhanced encryption by selecting the Encryption button on the Compose page and adding a recipient’s email address. It will then prompt you to select whether the email should be encrypted with S/MIME, a security standard supported by many email providers, or with PGP (Pretty Good Privacy), another encryption standard that works only if the recipient has it enabled and can decrypt the message using their own keys.

If you’re concerned about the privacy of your messages, you can send encrypted emails with FlowCrypt, a free app or extension that adds a button to Gmail. If you want to use FlowCrypt, the person you’re sending the message to should also have it installed and set up on their computer. They should then enter the verification code that FlowCrypt gives them to unlock the message.

Google has recently announced that it is now beta-testing client-side encryption for Gmail, but it’s available only to key account customers. It’s a welcome move that’s likely to be popular among enterprises, but it isn’t the end-to-end encryption many users have been hoping for.

Outlook

Outlook is a popular email client that offers a variety of features for managing your emails and contacts. It also offers encryption, which helps protect your information from prying eyes who may intercept your messages in transit or breach your recipient's inbox.

Encryption in Outlook is a process that converts an email from plain text that anybody can understand to scrambled ciphertext. Only the recipient with a matching private key can read the content of an encrypted email message.

There are several ways to encrypt your emails in Outlook, but many of them require technical knowledge and resources. One option is S/MIME (short for Secure/Multipurpose Internet Mail Extensions), which allows you to encrypt emails with user-specific keys and send them in a secure format. It's a good choice for companies that work with large enterprises and government agencies, but it's not the most user-friendly solution.

Another way to encrypt your emails in Outlook is to use an add-in that is designed specifically for the purpose. These add-ins allow you to encrypt your emails without losing any of the functionality that you are used to in Outlook.

First, you need to set up an encryption certificate in your email client. This certificate will contain a Digital ID and public keys for each of the people you want to receive encrypted emails from.

Next, if the person you want to send an encrypted email to is within your organisation and uses an Exchange server, they can publish their certificate to GAL (Global Address List). This allows a copy of their public key to be stored on your Exchange server. If they are not in your organization, then you must include their certificate in the contact list as a new email address or re-add them.

Once you have a Digital ID and shared your public keys with your contacts, you can now begin sending encrypted emails from Outlook. To do this, select Options (located in the top menu of the new message window that appears), then Security Settings.

Once you have the email content and attachments encrypted, click Send. You will then be prompted to choose the recipient from whom you want to send your encrypted email.

Apple Mail

Email encryption is a great way to secure messages from being read by unauthorized individuals. This feature can be set up using the built-in Mail app on your Mac. However, you’ll need to obtain a certificate that will be used to encrypt the message contents. This is done by applying for a certificate on an online service and downloading it to your Mac.

Once you have the certificate, you need to install it into your Keychain before you can send encrypted emails from Apple Mail. To do this, you need to move the pointer over the From field and click the pop-up menu that appears. Then, select the account for which you have a personal certificate saved in your keychain.

You can also use the email signature feature to help your recipients identify you as a reliable sender. This lets them know that you’re not a robot or a spammer, and it gives you added credibility.

The downside to email encryption is that the contents of an email can be viewed by anyone who has access to your Mac. This is because the messages are stored as an S/MIME attachment that can only be accessed by using Keychain Access. Fortunately, Apple has a fix for this problem in its latest operating systems.

Despite this issue, there’s still no doubt that encrypted email is more secure than regular mail. It’s a good thing that it’s an option on most Mac computers, but the fact remains that it’s not end-to-end encrypted.

In order to encrypt an email on your Mac, you need to download a certificate from an online provider and place it in your Keychain. You can then send an encrypted message from Apple Mail by clicking on the blue lock icon next to the subject line of a message you’re sending.

If you’re a business owner or a professional, email encryption can be a good way to protect sensitive information from being stolen by unauthorized parties. It can also protect against identity theft, phishing, and fraud.

The Apple Mail privacy protection option is currently available for all new users on iOS 15 and higher. It’s a simple opt-in that will change the way you interact with Apple Mail on all devices. This choice will also affect the data Apple shares with email marketers. It’s important to understand how this feature will impact your email marketing efforts, so that you can plan accordingly.

Android Mail

Email encryption is a great way to secure messages sent between mobile devices. It prevents them from being intercepted or tampered with as you zoom across the internet, and it can also protect emails stored on your server. Encryption provides true end-to-end encryption, meaning that the contents of your email can only be deciphered by the recipient.

You can encrypt emails on Android using S/MIME or PGP/MIME. The first method, called S/MIME (Secure Multipurpose Internet Mail Extensions), allows you to digitally sign and encrypt your messages. It requires a certificate, which can be sent as an attachment.

The second method, called PGP/MIME (Pretty Good Privacy), is more powerful and can encrypt more than just email messages. It also provides encryption for files and attachments, including videos, music and other media.

There are several apps that can help you send and receive encrypted emails on Android, including CipherMail, K-9 Mail and AGP. All of these apps offer a variety of features, including multi-account support, search, flagging, filing, signatures, BCC-self and PGP/MIME.

Choosing an email app for your Android device depends on a few things, such as how often you use it and what you value the most. For example, if you need to manage contacts, you'll probably want an email client that has easy-to-use contact management and calendar integrations.

If you need to send encrypted messages to large groups of recipients, you'll want an email app that supports S/MIME and PGP/MIME. These tools are a little more complex than email encryption tools like Gmail or Outlook, but they can be helpful when you need to send encrypted emails on the go.

To encrypt your email on an Android device, you'll need to install the appropriate application and add the necessary certificate. Some applications can be downloaded for free, while others require a subscription.

Once installed, you can select the desired certificate in the Security options dialog box. You can then select the Encrypt and Sign options based on your need.

For IU Exchange accounts, Android Mail will use the email account's public certificate to encrypt outgoing mail. If the recipient doesn't have a certificate, Android will use the default encryption settings on your account.