如果您需要发送包含敏感信息的电子邮件，您可以使用独立的私人电子邮件服务(private email services)来执行此操作，或者学习如何在Gmail中执行此操作。
Gmail带有一种特殊的机密模式，可让您发送在一定时间后消失的电子邮件。如果您是以隐私为中心的用户，您也会喜欢这种模式，因为它使收件人无法转发、复制、打印或下载您的私人电子邮件的内容。
以下是您需要了解的有关Gmail机密模式以及如何使用它在Gmail中发送私人电子邮件的所有信息。
什么是 Gmail 的机密模式？
Gmail的机密模式允许您向其他Gmail用户以及使用Outlook、Yahoo 或 iCloud 等其他电子邮件客户端的人发送机密或私人电子邮件。(use other email clients)
当您以机密模式发送电子邮件时，您可以手动为其设置到期日期——电子邮件将从收件人的Gmail帐户中消失的日期。如果您要向某人发送“阅后即焚”类型的信息并且不希望它在他们的收件箱中闲置，那么此功能非常方便。您可以将您的电子邮件设置为在 1 天后尽快过期，或者最多保留 5 年。
使用 Gmail 机密模式的另一个优点是能够设置阅读电子邮件所需的SMS密码。(SMS)这意味着如果没有包含打开邮件所需密码的文本，任何人都无法阅读邮件的内容。
如何在Gmail中使用机密(Gmail)模式(Mode)
使用 Gmail 的机密模式发送私人电子邮件非常简单。您可以在台式机和智能手机上执行此操作。
如何在 Gmail 中发送私人电子邮件
要在Gmail(Gmail)中使用机密模式在您的计算机上发送私人电子邮件，请按照以下步骤操作。
- 打开Gmail并登录您的帐户。
- 在屏幕的左上角，选择Compose。
- 在“新消息”(New Message)窗口的底部，找到Turn confidential mode on/off的选项并选择它。
- 在机密模式窗口中，设置到期日期以及是否需要SMS密码才能阅读电子邮件（这将增加额外的安全性）。
- 选择保存(Save)。
- 如果您选择设置密码，Gmail还会在发送电子邮件之前要求您确认您和收件人的电话号码。输入您的电话号码并选择发送(Send)以继续。
然后，您可以继续撰写电子邮件，并在准备好 后选择发送。(Send)
如何在Gmail 移动应用程序中发送(Gmail Mobile App)私人电子邮件(Private Emails)
如果您更喜欢在移动中发送电子邮件，您可以使用Gmail移动应用程序而不是桌面来快速撰写和发送机密电子邮件。要在Gmail(Gmail)移动应用中发送私人电子邮件，请按照以下步骤操作。
- 在您的智能手机上打开Gmail应用程序并登录您的帐户。
- 在屏幕的右下角，选择Compose。
*撰写 email_gmail 应用程序*
- 在撰写(Compose)窗口中，选择更多(More)（屏幕右上角的三个水平点。
- 选择机密模式(Confidential mode)。
- 在机密模式窗口中，设置到期日期以及是否需要SMS密码才能阅读电子邮件（这将增加额外的安全性）。
- 选择保存(Save)。
写下您的电子邮件并在完成后选择发送(Send)。
如何打开机密电子邮件
借助机密模式功能，您不仅可以向任何Gmail用户发送私人电子邮件，还可以向使用不同电子邮件提供商的人发送私人电子邮件。如果您使用Gmail打开机密电子邮件，您可以像使用台式机或智能手机打开普通电子邮件一样执行此操作。如果发件人要求提供SMS密码，您将收到一条短信，并且需要在Gmail中输入密码才能打开电子邮件。
如果您使用其他电子邮件提供商(different email provider)，请打开机密电子邮件并点击其中的链接以请求密码。您将收到一条短信，然后需要输入代码才能查看电子邮件的内容。
在您通过电子邮件发送任何敏感数据之前(Sensitive Data Over Email)
通常不建议通过 Internet 发送任何敏感数据，因为您无法确定任何内容都是 100% 在线安全的。尽管 Gmail 的机密模式会阻止收件人转发或打印您的电子邮件，但他们仍然可以对其拍照或截屏，然后想办法保存并在以后与其他用户共享。
为防止您自己的数据被用于对您不利，请了解如何加密您的所有在线和离线数据(encrypt all your online and offline data)，以及其他免费发送安全加密电子邮件(send secure encrypted emails)的方法。但是，有时最佳做法是尽量避免通过 Internet 发送任何私人或敏感信息。
您以前是否发送过包含私人信息的电子邮件？您(Did)是否使用了 Gmail 的机密模式或其他方法来执行此操作？在下面的评论部分分享您对电子邮件隐私的体验。
How to Send Private Emails in Gmail
If yоu ever need to send an emаil containing sensitive information, you can use independent private email services to do it, or learn how to do it in Gmail instead.
Gmail comes with a special confidential mode that allows you to send emails that disappear after a certain amount of time. If you’re a privacy-centric user, you’ll also love this mode for how it makes it impossible for the recipient to forward, copy, print, or download the contents of your private email.
Here’s everything you need to know about Gmail’s confidential mode and how to use it to send private emails in Gmail.
What’s Gmail’s Confidential Mode?
Gmail’s confidential mode allows you to send confidential or private emails to other Gmail users, as well as people that use other email clients like Outlook, Yahoo, or iCloud.
When you send an email in confidential mode, you can manually set an expiry date for it – the date when the email will disappear from the recipient’s Gmail account. This is a feature that’s handy if you’re sending someone the “burn after reading” type of information and don’t want it lying around inside their inbox. You can set your email to expire as soon as in 1 day or leave it for up to 5 years.
Another advantage of using Gmail’s confidential mode is the ability to set an SMS passcode required for reading your email. That means that no one can read the contents of your message without the text that contains the passcode required to open it.
How to Use Confidential Mode in Gmail
Using Gmail’s confidential mode to send private emails is pretty easy. You can do it both on your desktop and your smartphone.
How to Send Private Emails in Gmail
To send private emails on your computer using confidential mode in Gmail, follow the steps below.
- Open Gmail and log into your account.
- In the upper-left corner of the screen, select Compose.
- At the bottom of the New Message window, find an option to Turn confidential mode on/off and select it.
- In the confidential mode window, set the expiry date and whether you want to require an SMS passcode for reading your email (this will add extra security).
- Select Save.
- If you choose to set a passcode, Gmail will also ask you to confirm your and recipient’s phone numbers before sending your email. Enter your phone number and select Send to proceed.
You can then continue composing your email and select Send when it’s ready.
How to Send Private Emails in Gmail Mobile App
If you prefer sending your emails while on the move, you can use Gmail mobile app instead of your desktop to quickly compose and send a confidential email. To send a private email in Gmail mobile app, follow the steps below.
- Open the Gmail app on your smartphone and log into your account.
- At the bottom-right corner of your screen, select Compose.
*compose email_gmail app*
- Inside the Compose window, select More (the three horizontal dots in the upper-right corner of the screen.
- Select Confidential mode.
- In the confidential mode window, set the expiry date and whether you want to require an SMS passcode for reading your email (this will add extra security).
- Select Save.
Write up your email and select Send when it’s finished.
How to Open a Confidential Email
Thanks to the confidential mode feature, you can send private emails not just to any Gmail user, but also to people who use different email providers. If you’re using Gmail to open a confidential email, you can do it the same way you open your normal emails using your desktop or your smartphone. If the sender requested an SMS passcode, you’ll receive a text message and will need to type the code in Gmail before you can open the email.
If you use a different email provider, open the confidential email and follow the link inside it to request a passcode. You’ll receive a text message and will then be required to enter the code to view the email’s contents.
Before You Send Any Sensitive Data Over Email
It’s generally not recommended to send any sensitive data over the internet as you can’t be sure anything is 100% secure online. Even though Gmail’s confidential mode prevents the receiver from forwarding or printing out your email, they can still take a picture or a screenshot of it and find ways to save and share it with other users later.
To prevent your own data being used against you, learn how to encrypt all your online and offline data, as well as other ways to send secure encrypted emails for free. However, sometimes the best practice is to try and avoid sending any private or sensitive information over the internet.
Have you ever sent an email containing private information before? Did you use Gmail’s confidential mode or some other method to do it? Share your experience with email privacy in the comments section below.
