如果您使用Gmail ，那么当您的电子邮件通过Google服务器传输时，您已经拥有内置加密功能。(encryption)Gmail使用S/MIME来支持增强型加密，并且它还会尽可能加密您的外发电子邮件。但是，一旦您的电子邮件到达目的地，Gmail的加密并不能保护您的电子邮件，而且(Gmail)这种限制(that limitation)是一个严重的限制。
如果您经常通过Gmail系统发送和接收敏感电子邮件，您可能需要考虑加强加密。幸运的是，有一些免费插件可以帮助保护您发送的每条消息。
有些要求您共享密码，而另一些则在没有密码的情况下在另一端解密。您还可以选择加密工具，防止电子邮件存储在任何邮件服务器上。
当您安装FlowCrypt插件时，您将在撰写框中获得一个新的绿色按钮，上面写着Encrypt and Send。在您撰写时，该软件会在保存信息时自动加密您的信息，因此您的信息甚至会在您发送之前被加密。
这意味着即使您保存但未发送的草稿也会被加密。如果另一端的人没有FlowCrypt，您必须提供密码并与收件人共享，然后他们才能访问电子邮件。
锁魔法(Lockmagic)(Lockmagic)
Lockmagic使用了一个更加谨慎的加密按钮，将其放置在普通的发送(Send)按钮旁边。这使其成为那些只需要偶尔加密消息的人的理想选择。
Lockmagic的一大优点是它无需添加密码并与每个收件人共享。每次打开邮件时，您都会收到通知，让您可以监控任何可疑活动。
邮件信封(Mailvelope)(Mailvelope)
Mailvelope的标准版本设置起来相当复杂，因为您必须手动安装密钥。但是，如果您有Gmail，则该插件旨在无需配置即可工作。
电子邮件在传输时会被加密，您还可以加密附件。如果您想添加另一个基于 Web 的电子邮件提供商(web-based email provider)，只需单击一下即可，只要该电子邮件提供商受支持即可。目前，雅虎！除了Gmail之外，还支持(Gmail)Mail、Outlook.com和GMX。
快照邮件(Snapmail)(Snapmail)
您可能听说过Snapchat(Snapchat)中的自毁帖子。Snapmail采用了类似的概念，让收件人在邮件永远消失之前有 60 秒的时间阅读邮件。电子邮件(Email)在传输到另一方时会被加密，并提供一个链接供收件人阅读邮件。
当然，没有什么能阻止收件人截屏邮件以便稍后访问，但它提供了安全性，因为邮件不会无限期地存在于服务器上。
正确的加密工具会让您高枕无忧，尤其是在您必须发送帐号和联系信息等敏感信息时。(send sensitive information)确保(Make)您选择的工具不仅可以保护您的数据，而且在接收者端易于使用。
Use These 4 Chrome Plugins To Encrypt Your Gmail Messages
If you use Gmail, you alrеady hаve built-іn encryption as your emails travel across the Google servers. Gmail uses S/MIME to support enhanced encryption and it will also encrypt your outgoing emails when possible. Gmail’s encryption doesn’t protect your email once it reaches its destination, though, and that limitation is a serious one.
If you routinely send and receive sensitive emails through the Gmail system, you may want to look into strengthening your encryption. Luckily, there are a few free plugins available that will help secure each message you send.
Some require you to share a password, while others decrypt at the other end without it. You’ll also have the option of an encryption tool that keeps the email from being stored on any mail servers.
When you install the FlowCrypt plug-in, you’ll get a new green button in the compose box that reads Encrypt and Send. As you’re composing, the software automatically encrypts your message as it saves, so your information will be encrypted before you even send it.
This means even those drafts you save but don’t send will be encrypted. If the person on the other end doesn’t have FlowCrypt though, you’ll have to provide a password and share it with the recipient before they can access the emails.
Lockmagic uses a much more discreet button for encryption, placing it next to the normal Send button. This makes it ideal for those who only need to occasionally encrypt a message.
One of the best things about Lockmagic is that it eliminates the need to add a password and share it with every recipient. You’ll also get a notification every time the message is opened, allowing you to monitor for any suspicious activity.
The standard version of Mailvelope is fairly complicated to set up, as you have to manually install the keys. If you have Gmail though, the plugin has been designed to work without configuration.
Emails are encrypted as they transfer, and you can also encrypt attachments. If you want to add another web-based email provider, you can do so with just a click, as long as the email provider is supported. Currently, Yahoo! Mail, Outlook.com, and GMX are supported, in addition to Gmail.
You’ve probably heard of the self-destructing posts in Snapchat. Snapmail incorporates a similar concept, giving recipients 60 seconds to read the message before it disappears forever. Email is encrypted as it transfers to the other party, with a link provided for the recipient to read the message.
Of course, nothing stops the recipient from screenshot-ting the message to access later, but it offers security in that the message doesn’t live out there on a server indefinitely.
The right encryption tool will give you peace of mind, especially if you have to send sensitive information like account numbers and contact information. Make sure you choose a tool that not only protects your data, but also is easy to use on the recipient’s end.
