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If you’re sending mail to someone and you haven’t communicated a password to them already, you can use the hint field to prompt them to enter a password that only they would know.
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This is where you can set your password (which must be typed twice for confirmation) as well as an optional password hint. When you’re ready to send your message, click on the Encryption “padlock” icon along the bottom of the compose window. Once you’ve signed up and logged in, click on the “Compose” button in the top-left corner of the screen to begin writing your message. You don’t need to provide your name, an existing email address, or any other identifying personal information. To do this, you’ll need to sign up for a free ProtonMail account. But there’s also an option to simply send a password-protected email to anyone, regardless of which email service they use. ProtonMail automatically encrypts all messages between users of the service, with an option to use PGP encryption for contacts who are using other email services. It uses end-to-end encryption, so that email contents are stored in an encrypted format that not even ProtonMail’s servers can decrypt. The service is based in Switzerland, where data protection laws are strict. ProtonMail is one of the web’s best-known secure email providers. Sending Password-Protected Email with ProtonMail This means that the message contents won’t even show up when searched for in a webmail or desktop client. In particular, the services we’ll be using today don’t transfer any of your message (except for the subject line) to the recipient’s email server. As long as you can communicate the password to the recipient privately, your message can be read without the risk of anyone else seeing it first. If you’re serious about having only the intended recipient see the contents of your email, protecting it with a password seems like an obvious choice. If the message in question is sensitive, this might not be ideal. The message might be indexed by local search engines and may show up at other times.
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All it takes is a click or two to read the entire contents, regardless of whether the email was intended for someone’s eyes or not.
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On a shared computer or tablet, the email might download automatically via clients like Apple Mail.
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