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20250306 - 2025年最安全的电子邮件提供商 - Best secure email provider of 2025

  • 分类: Clippings
  • 创建: 2025-03-06
  • 标签: 安全, 电子邮件, 提供商, 加密, 隐私, ProtonMail, Mailbox.org, Tuta, StartMail, Runbox, 绿色能源, 免费计划, 开源, 临时地址, 别名, 反垃圾邮件, 价格, 界面, 易用性

Best secure email provider of 2025

摘要 (Summary)

本页面详细介绍了2025年市场上最安全的电子邮件提供商，包括Proton Mail、Mailbox.org、Tuta和StartMail等。文章评估了每个提供商的功能、计划和定价，并提供了用户界面和使用体验的反馈。还包括了关于加密重要性、数据隐私和司法管辖区等方面的常见问题解答。此外，页面还提供了一个快速概览表，比较了不同提供商的关键特征。

要点 (Key Facts)

  • Proton Mail被评为最佳整体安全电子邮件提供商，提供端到端加密和免费计划。
  • Mailbox.org以其绿色能源和额外功能突出，适合环保用户。
  • Tuta专为免费用户提供最佳安全电子邮件服务，提供全消息加密和开源代码。
  • StartMail因其隐私保护功能，如临时电子邮件地址和无限别名，被推荐为隐私的最佳替代方案。
  • Runbox提供强大的隐私保护，但界面较为过时，不适合企业用户。
  • 所有这些提供商都使用某种形式的PGP加密，但Tuta采用混合AES+ RSA加密。
  • 文章还讨论了加密在电子邮件服务中的重要性以及如何测试这些服务。

正文 (Content)

Best secure email provider's logos by TechRadar

(Image credit: Future)  (图片来源：Future)

Selecting the best secure email provider will largely depend on your needs, and in part on the region you reside in. For most of us, the worry and threat will come from cybercriminals (hackers or ransomware groups). Therefore, securing our email communication with the help of strong privacy measures is key.
选择最佳的安全电子邮件提供商将在很大程度上取决于您的需求，部分取决于您居住的地区。对于我们大多数人来说，担忧和威胁将来自网络犯罪分子（黑客或勒索软件团体）。因此，在强大的隐私措施的帮助下保护我们的电子邮件通信是关键。

Most secure email providers use OpenPGP encryption as standard, since fully encrypted email systems, like PGP-encrypted inboxes, can be difficult to use, especially when it comes to searching for emails. This pragmatic approach to encryption enables the providers to offer a well-balanced service that closely cuts between functionality and pragmatism.
大多数安全的电子邮件提供商使用 OpenPGP 加密作为标准，因为完全加密的电子邮件系统，如 PGP 加密的收件箱，使用起来可能很困难，尤其是在搜索电子邮件时。这种务实的加密方法使提供商能够提供一个在功能性和实用性之间紧密平衡的服务。

With all that in mind, here are the most secure email providers currently on the market.
考虑到所有这些，目前市场上最安全的电子邮件提供商如下。

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Best overall  最佳整体表现

ProtonMail's main page

(Image credit: Proton)  (图片来源：Proton)

1. Proton Mail

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.
为什么您可以信任 TechRadar 我们花数小时测试我们所评测的每一个产品或服务，因此您可以确定您购买的是最好的。了解更多关于我们如何测试的信息。

Best overall secure email provider
最佳整体安全电子邮件提供商

Reasons to buy  购买理由

+

Great E2EE that extends to non-Proton users

+出色的端到端加密，扩展到非 Proton 用户+

Password protect messages

+密码保护消息+

Additional features (VPN, password, calendar, etc.)

+附加功能（VPN、密码、日历等）+

Comes with a free plan

+提供免费计划

Reasons to avoid  避免的原因

-

Only 1GB on free plan

-免费计划仅有 1GB-

POP3 not supported

-不支持 POP3

Features  功能

ProtonMail allows you to send encrypted messages to recipients who don't use ProtonMail. You set a mailbox password when sending the email, and the recipient will receive a link labeled 'Unlock message'. They are redirected to the ProtonMail website, where they must enter the password to view your message.
ProtonMail 允许您向不使用 ProtonMail 的收件人发送加密消息。发送电子邮件时，您可以设置邮箱密码，收件人将收到一个标有“解锁消息”的链接。他们会被重定向到 ProtonMail 网站，在那里他们必须输入密码才能查看您的消息。

ProtonMail also offers the ProtonMail Bridge, which integrates its end-to-end encryption (E2EE) with popular email clients like Outlook and Thunderbird. Any email client that supports IMAP and SMTP should be compatible, making it easy to improve security while continuing to use your preferred client. Additionally, ProtonMail supports the use of email aliases, which are alternative addresses linked to your primary email, allowing for more privacy and organization. Finally, ProtonMail offers Link Confirmation to help prevent phishing attempts by showing a preview of a link's destination before you click on it.
ProtonMail 还提供 ProtonMail Bridge，它将端到端加密（E2EE）与流行的电子邮件客户端（如 Outlook 和 Thunderbird）集成。任何支持 IMAP 和 SMTP 的电子邮件客户端都应该兼容，这使得在继续使用您喜欢的客户端的同时提高安全性变得更加容易。此外，ProtonMail 支持使用电子邮件别名，这些别名是与您的主要电子邮件链接的替代地址，可以提供更多的隐私和组织性。最后，ProtonMail 提供链接确认功能，在您点击链接之前显示链接目的地的预览，以帮助防止钓鱼尝试。

Plans and pricing   计划和定价

The Free plan on ProtonMail provides a single email address and 1 GB of storage. Upgrading to the Mail Plus plan at $3.99 /month gives you 15 GB of storage, support for one custom domain, and up to 10 additional email addresses. For even more storage and features, the Proton Unlimited plan at $9.99 /month includes 500 GB of storage and 15 email addresses. The top-tier Proton Duo plan at $14.99/month offers even further enhancements.
ProtonMail 的免费计划提供一个电子邮件地址和 1 GB 的存储空间。升级到每月 3.99 美元的 Mail Plus 计划可获得 15 GB 的存储空间、一个自定义域名的支持以及最多 10 个额外的电子邮件地址。为了获得更多存储空间和功能，每月 9.99 美元的 Proton Unlimited 计划包括 500 GB 的存储空间和 15 个电子邮件地址。顶级的 Proton Duo 计划每月 14.99 美元提供进一步的增强功能。

ProtonMail helps you save some bucks with the family plans. The Proton Duo, for instance, is for two people. It costs you $14.99 /month for 1 TB of storage and access to all Proton apps and premium features. For six people the storage increases to 3 TB with the Proton Family plan at $23.99 /month. Remember that all the above prices are available when you subscribe to their yearly plans.
ProtonMail 通过家庭计划帮助您节省一些费用。例如，Proton Duo 适用于两人，1 TB 存储空间和所有 Proton 应用及高级功能的访问权限每月需支付 14.99 美元。对于六人，Proton Family 计划提供 3 TB 存储空间，每月需支付 23.99 美元。请记住，以上所有价格均在您订阅其年度计划时有效。

Interface and in-use   界面和使用中的

ProtonMail has the easiest-to-use web interface out of all of the tested email providers. The UI is clean and logically laid out, with all of your email settings located in the upper right corner, while your inbox and folder structure are on the left-hand side. Folders and labeling structures are easy to use and can be created with a few clicks of the mouse. Searching in the email is a breeze, especially if you label and color code your emails.
ProtonMail 的网页界面在所有测试的电子邮件提供商中最易于使用。界面简洁且布局合理，所有电子邮件设置位于右上角，而你的收件箱和文件夹结构则在左侧。文件夹和标签结构易于使用，只需点击几下鼠标即可创建。搜索电子邮件非常简单，特别是如果你对邮件进行了标签和颜色编码。

Verdict  裁决

ProtonMail is an excellent option for both individuals and businesses seeking one of the most secure email services available, that is easy to use. The Free plan offers a solid introduction to ProtonMail's core features, making it a great starting point for users interested in encryption and privacy.
ProtonMail 是个人和企业寻求最安全的电子邮件服务的绝佳选择，且易于使用。免费计划为用户提供了 ProtonMail 核心功能的坚实介绍，是对加密和隐私感兴趣的用户的绝佳起点。

Best for green energy  最适合绿色能源

Mailbox.org's main page

(Image credit: Mailbox.org)
(图片来源：Mailbox.org)

2. Mailbox.org

Best secure email service for green energy
最适合绿色能源的安全电子邮件服务

Reasons to buy  购买理由

+

Green business

+绿色企业+

Additional features

+附加功能+

Great pricing

+优惠的价格

Reasons to avoid  避免的原因

-

Subject line and metadata exposed

-主题行和元数据暴露-

No free plan

-没有免费计划

Features   功能

Mailbox.org encrypts messages on their servers, thanks to E2EE, where the recipient will have to use a secret key to read the message. The cloud storage offer extends up to 50GB in the highest tier plan, and you get alias addresses which allow users to create multiple email addresses tied to their main account for added privacy and organization.
Mailbox.org 使用 E2EE 在其服务器上加密消息，接收者需要使用密钥才能阅读消息。最高级别计划提供高达 50GB 的云存储空间，并且您可以使用别名地址，允许用户创建多个与主账户关联的电子邮件地址，以增加隐私和组织性。

Interesting thing to note is that their servers are energy-efficient and the company is all about 100% green energy.
值得注意的是，他们的服务器能效高，而且公司完全使用 100%绿色能源。

Other features include custom domain support as well as a calendar tool for scheduling and contact management for organizing contacts. Mailbox.org also provides secure video conferencing to ensure private communication between users, rounding out a comprehensive suite of secure communication tools. Note that metadata is not encrypted, but this is fairly standard with PGP.
其他功能包括自定义域名支持以及用于日程安排的日历工具和用于组织联系人的联系人管理。Mailbox.org 还提供安全的视频会议，以确保用户之间的私人通信，构成了一套全面的安全通信工具。请注意，元数据未加密，但这在 PGP 中相当标准。

Plans and pricing  计划和定价

Pricing plans are divided into three options, the Light, Standard, and Premium plans, starting at €1, €3, and €9, respectively. All plans come with a 30-day money-back guarantee. The plans are similar in the offer, whereas Light doesn’t offer the Video and Webchat features.
定价计划分为三个选项，分别是 Light、Standard 和 Premium 计划，起价分别为€1、€3 和€9。所有计划均提供 30 天的退款保证。各计划在提供的服务上相似，但 Light 计划不提供视频和网络聊天功能。

Interface and in-use  界面和使用中的

Registering and opening an account is simple, you don’t even have to provide your real name. Once logged in, you get a “guided tour for this app” option, which is a great feature that introduces you to everything the service has to offer. Importing contacts through CSV and IMAP migration is also easy, with Mailbox holding your hand through the entire process. Overall, a very easy-to-use service.
注册并开通账户非常简单，你甚至不需要提供真实姓名。登录后，你会得到一个“应用导览”选项，这是一个很棒的功能，可以介绍服务的所有内容。通过 CSV 和 IMAP 迁移导入联系人也很容易，Mailbox 会全程指导你。总体来说，这是一个非常易用的服务。

Verdict

Mailbox.org is a great alternative to service like Google, that doesn’t make you feel like you’re missing out on some great features. The pricing is competitive, while the service is easy to use and offers greater protection and security for both individuals and businesses as compared to heavy hitters in the business (Microsoft, Google).

Best for free users  最适合免费用户

Tuta's main page

(Image credit: Tuta)  (图片来源：Tuta)

3. Tuta

Best secure email service for free users
免费用户的最佳安全电子邮件服务

Reasons to buy  购买理由

+

Entire message encryption

+整个消息加密+

Has a free plan

+有免费计划+

Open source

开源+

Great, comprehensive search functionality

+出色的、全面的搜索功能

Reasons to avoid  避免的原因

-

Limited alias system

-有限的别名系统

Features  功能

Tutanota is known for its E2EE which protects not only the content of emails but also their subject lines (an aspect often overlooked by other providers). All data is kept secure through encryption while at rest; it's only decrypted when accessed via the user's browser or email application.
Tutanota 以其端到端加密（E2EE）闻名，这不仅保护了电子邮件的内容，还保护了邮件的主题行（这是其他提供商经常忽视的一个方面）。所有数据在静态时通过加密保持安全；只有在通过用户的浏览器或电子邮件应用程序访问时才会被解密。

You can sign up anonymously without having to share personal details, like names, phone numbers, etc. Moreover, the open-source nature of Tutanotas code adds a layer of trust since it can be reviewed by the community.
您可以匿名注册，无需分享个人信息，如姓名、电话号码等。此外，Tutanota 的代码开源性质增加了一层信任，因为它可以被社区审查。

The platform provides web and desktop applications, for operating systems such as Windows, macOS, and Linux; along with applications for Android and iOS that can be accessed without Google through F Droid for users who prioritize privacy protection. Premium subscriptions come with functionalities like Whitelabel branding designed for businesses, the option to securely send emails to Tutanota users, and compatibility, with Secure Connect.
该平台提供网络和桌面应用程序，适用于 Windows、macOS 和 Linux 等操作系统；还提供 Android 和 iOS 应用程序，用户可以通过 F Droid 访问这些应用程序，无需 Google，适合重视隐私保护的用户。高级订阅包括为企业设计的 Whitelabel 品牌功能、向 Tutanota 用户安全发送电子邮件的选项，以及与 Secure Connect 的兼容性。

One note on its search functionality, in a true zero-knowledge encryption system, message content cannot be accessed or searched on the server. Instead, searching must be done locally, which is a complex process. Tutanota addresses this by creating a local encrypted index of your emails, which is then used for searches. This means the search function communicates between your local index and the server, which is why the free version offers a search for up to 30 days. Higher tiers, extend this functionality.
关于其搜索功能的一个说明，在真正的零知识加密系统中，消息内容无法在服务器上被访问或搜索。相反，搜索必须在本地进行，这是一个复杂的过程。Tutanota 通过创建你电子邮件的本地加密索引来解决这个问题，然后用它进行搜索。这意味着搜索功能在你的本地索引和服务器之间进行通信，这就是为什么免费版本提供最多 30 天的搜索功能。更高的层级，扩展了这一功能。

Plans and pricing  计划和定价

There are a total of three plans, Free, Revolutionary, and Legend. Obviously, the second two are the only paid ones, and if you opt for annual pricing you will get them for €3 or €8, a month, respectively. The free version has a limited search functionality, 1 GB of storage, and one calendar. The Revolutionary and Legend plans extend the storage to 20 GB and 500 GB respectively. You also get 3 to 10 custom domains, extra emails, and an unlimited number of calendars.
共有三个计划，免费、革命和传奇。显然，后两个是唯一付费的，如果你选择年度定价，你将分别以每月 3 欧元或 8 欧元获得它们。免费版本具有有限的搜索功能，1 GB 的存储空间和一个日历。革命和传奇计划分别将存储空间扩展到 20 GB 和 500 GB。你还可以获得 3 到 10 个自定义域名、额外的电子邮件和无限数量的日历。

Interface and in-use  界面和使用中的

Registration is fairly simple, and if you’ve registered for any email service before, then everything around Tuta’s will be familiar. Once logged in, Tutanota’s interface is similar to other web-based email platforms. On the left, you'll find the standard list of folders like Inbox, Drafts, Sent, and Trash, while the middle section displays the contents of the selected folder. A message preview appears on the right, and a slim menu on the far left provides icons for help, settings, and other options. Overall, a well-designed, logically laid out, and easy-to-use system.
注册过程相当简单，如果你之前注册过任何电子邮件服务，那么 Tuta 的注册流程会很熟悉。登录后，Tutanota 的界面与其他基于网络的电子邮件平台相似。在左侧，你会找到标准的文件夹列表，如收件箱、草稿、已发送和垃圾邮件，而中间部分显示所选文件夹的内容。右侧会显示消息预览，左侧边缘有一个细长的菜单，提供帮助、设置和其他选项的图标。总体来说，这是一个设计良好、布局合理且易于使用的系统。

Verdict  裁决

Tuta mail, while not being as popular as other services, represents a real hidden gem. It’s easy to set up and use while offering a unique hybrid encryption approach. While the search function on a free plan might not be ideal, I recommend you give the free plan a go before deciding to opt for a paid plan or another service.
Tuta mail 虽然不如其他服务那么流行，但却是一颗真正的隐藏宝石。它易于设置和使用，同时提供了一种独特的混合加密方法。虽然免费计划的搜索功能可能不是理想的，但我建议你在决定选择付费计划或其他服务之前，先尝试一下免费计划。

Best alternative for privacy

最佳隐私替代方案

StartMail's main page

(Image credit: StartMail)
(图片来源：StartMail)

Best alternative secure email service for privacy
最佳替代安全电子邮件服务以保护隐私

Reasons to buy  购买理由

+

Temporary email addresses

+临时电子邮件地址+

Unlimited aliases

+无限别名+

Great anti-spam features

+出色的反垃圾邮件功能

Reasons to avoid  避免的原因

-

No additional office-like features

-没有额外的类似办公的功能-

No free plan

-没有免费计划

Features  功能

StartMail offers PGP end-to-end encryption, ensuring your emails are safe from prying eyes. Users can create unlimited aliases for enhanced privacy and secure messages that can be sent to non-StartMail users with a password. Despite being feature-rich in security, it does not include a calendar or file storage, which competitors like ProtonMail offer.
StartMail 提供 PGP 端到端加密，确保您的电子邮件免受窥探。用户可以创建无限别名以增强隐私，并可以向非 StartMail 用户发送带密码的安全消息。尽管在安全性方面功能丰富，但它不包括日历或文件存储，这是像 ProtonMail 这样的竞争对手所提供的。

One of the standout features of StartMail’s security is its ability to automatically block tracking pixels, which can monitor your email activity. It also includes malicious link protection, displaying the full web address before you click any external links. Additionally, StartMail hides your IP address in email headers, ensuring that third parties cannot trace your location or track you through your emails.
StartMail 安全性的一个突出特点是其能够自动阻止跟踪像素，这些像素可以监控你的电子邮件活动。它还包括恶意链接保护，在你点击任何外部链接之前显示完整的网址。此外，StartMail 在电子邮件头中隐藏你的 IP 地址，确保第三方无法通过你的电子邮件追踪你的位置或跟踪你。

Plans and pricing  计划和定价

Unfortunately, StartMail falters when it comes to pricing plans. While they do offer only two plans, the Personal and the Business, the pricing could be improved. If you opt for annual pricing, you get the Personal plan for $3 per month instead of the $4.99 for monthly payments. Similarly, you get the Business plan for $4.20 a month, instead of $6.99 for monthly payments. However, when it comes to security, you get two-factor authentication, encrypted data in transit with TLS connections, and a personal vault.
不幸的是，StartMail 在定价计划上表现不佳。尽管他们只提供两种计划，即个人和商业计划，但定价可以改进。如果选择年度定价，您可以以每月 3 美元的价格获得个人计划，而不是每月支付 4.99 美元。同样，您可以以每月 4.20 美元的价格获得商业计划，而不是每月支付 6.99 美元。然而，在安全性方面，您可以获得双因素认证、通过 TLS 连接传输的加密数据以及个人保险库。

Additionally, the service renews at a higher price, which is a practice that I really don’t like. There is also a 7-day money-back guarantee, which seems short compared to other offerings.
此外，该服务续费时价格较高，这是我非常不喜欢的做法。还有一个 7 天的退款保证期，相较于其他服务，这个期限似乎较短。

Interface and in-use  界面和使用中的

StartMail’s interface is quite similar to Gmail, featuring a clean, organized menu on the left side with options like Inbox, Sent, Drafts, and custom folders. Users can also customize email layouts and create filters that move specific emails to designated folders. Overall, StartMail's dashboard is intuitive and user-friendly, making it easy to navigate for beginners.
StartMail 的界面与 Gmail 非常相似，左侧有一个干净、有序的菜单，包含收件箱、已发送、草稿和自定义文件夹等选项。用户还可以自定义邮件布局并创建过滤器，将特定邮件移动到指定文件夹。总体来说，StartMail 的仪表板直观且用户友好，初学者易于导航。

Verdict  裁决

If price is not a concern, StartMail offers solid features and can be a good choice for security-conscious users. For everyone else, there are cheaper and even free offerings listed above which offer similar and in some aspects better features than StartMail.
如果价格不是问题，StartMail 提供可靠的功能，可以是注重安全的用户的一个好选择。对于其他人来说，上面列出的有更便宜甚至免费的选择，它们提供与 StartMail 相似的功能，并且在某些方面甚至更好。

Honorable mention  荣誉提名

Runbox's main page

(Image credit: Runbox)  (图片来源：Runbox)

5. Runbox

Runbox is a Norweigan-based service that has been running since 2000 in a fairly secure jurisdiction.
Runbox 是一家位于挪威的服务，自 2000 年以来一直在相对安全的司法管辖区运营。

Reasons to buy  购买理由

+

100 email aliases per mailbox

每个邮箱 +100 个电子邮件别名+

Affordable

+实惠+

Supports SMTP, POP, and IMAP protocols

+支持 SMTP、POP 和 IMAP 协议+

Webmail, Contacts, and Files come as standard

+网页邮件、联系人、文件作为标准功能提供

Reasons to avoid  避免的原因

-

Not ideal for businesses

-不适合企业-

Outdated UI

-过时的用户界面-

Not the easiest to use

-使用起来不是最简单的

Features  功能

Runbox, based in Norway, is known for offering strong privacy protections, often seen as superior to many EU locations, the UK, and the US. Each account includes 100 aliases on their domain, with unlimited aliases available if using a custom domain. The service provides robust features like spam detection and supports POP, IMAP, and SMTP with enforced TLS 1.2 or higher for secure email transmission.
Runbox，总部位于挪威，以提供强大的隐私保护而闻名，通常被认为优于许多欧盟地点、英国和美国。每个账户在其域名下包含 100 个别名，如果使用自定义域名，则可获得无限别名。该服务提供强大的功能，如垃圾邮件检测，并支持 POP、IMAP 和 SMTP，强制使用 TLS 1.2 或更高版本以确保电子邮件传输的安全。

Users can sync their emails with popular clients like Apple Mail, Mozilla Thunderbird, and Microsoft Outlook, and enjoy drag-and-drop attachments and custom domain support. Runbox also boasts an A+ security rating from Qualys SSL Labs and includes data storage with every account (SHA256 keys with RSA 4096 bits).
用户可以将他们的电子邮件与流行的客户端同步，如 Apple Mail、Mozilla Thunderbird 和 Microsoft Outlook，并享受拖放附件和自定义域名支持。Runbox 还拥有来自 Qualys SSL Labs 的 A+安全评级，并且每个账户都包含数据存储（SHA256 密钥和 RSA 4096 位）。

Unfortunately, the webmail interface does not have an in-built end-to-end encryption (E2EE), which means you will need a third-party extension to encrypt emails with PGP. It’s not as straightforward to set up as with other service providers. However, you get IP stripping as standard for all sent messages, which is a plus. If you need business apps like calendars, office tools, and conferencing features, you’re out of luck with Runbox and should turn to a different provider.
不幸的是，网页邮件界面没有内置的端到端加密（E2EE），这意味着您需要第三方扩展来使用 PGP 加密邮件。与其他服务提供商相比，设置起来并不那么简单。然而，所有发送的消息都默认进行 IP 剥离，这是加分项。如果您需要像日历、办公工具和会议功能这样的商务应用，Runbox 就不适合您，您应该转向其他提供商。

Plans and pricing  计划和定价

The pricing scheme on the surface seems complex, but is straightforward; offering a 60-day money-back guarantee. In essence, you get to choose from six plans: Micro, Mini, Medium, Max, Max100, Max250.
表面上看，定价方案似乎复杂，但实际上很简单；提供 60 天的退款保证。本质上，你可以从六个计划中选择：Micro, Mini, Medium, Max, Max100, Max250。

The pricing starts at $19.95 for one year and goes all the way to $179.95 for the highest price plan. The plans mostly differ in email and file storage capacity and other than that, are pretty much the same.
定价从一年的 19.95 美元起，最高可达 179.95 美元的最高价计划。这些计划主要在电子邮件和文件存储容量上有所不同，除此之外，大体上是相同的。

Interface and in-use  界面和使用中的

I was pretty disappointed by the look and feel of Runbox. Sure, I understand that users seeking secure email storage that isn't scanned for advertising purposes like Google's services and is safely protected from hacking, might not need a sleek UI. However, what Runbox offers is more suitable for old Windows systems from the 2010s and not a modern solution. If you end up choosing the service, I highly recommend using an email client from our list of best email clients in 2024.
我对 Runbox 的外观和感觉感到非常失望。当然，我理解那些寻求不像谷歌服务那样用于广告目的的安全电子邮件存储，并且能够安全地保护免受黑客攻击的用户，可能不需要一个流畅的用户界面。然而，Runbox 提供的更多是适合 2010 年代的老式 Windows 系统，而不是现代解决方案。如果你最终选择了这项服务，我强烈推荐使用我们 2024 年最佳电子邮件客户端列表中的一个电子邮件客户端。

Verdict  裁决

It’s a secure email provider that doesn’t offer a package for office workers (office applications, conferencing tools, etc.). If you need a place to safely store your email communication and files, without needing much else, then Runbox could be a useful service. However, if you need more, then look elsewhere.
这是一个安全的电子邮件提供商，它不提供针对办公人员的套餐（办公应用程序、会议工具等）。如果你需要一个安全存储电子邮件通信和文件的地方，且不需要其他太多功能，那么 Runbox 可能是一个有用的服务。然而，如果你需要更多功能，那就另寻他处。

Quick overview  快速概览

Swipe to scroll horizontally

Quick overview  快速概览
Email Provider Name:RunboxProtonMailMailbox.orgTutaStartMail
EncryptionPGP (with addon)PGPPGPHybrid AES + RSAPGP
JurisdictionNorway (14 Eyes)SwitzerlandGermany (14 Eyes)Germany (14 Eyes)Netherlands (9 Eyes)
Open SourceClient Apps OnlyYesNoClient Apps OnlyNo
Custom domainYes (Micro plan)Yes (Plus plan)Yes (Standard plan)Yes (Premium plan)Yes (Domain plan)
AliasesYes (paid)Yes (paid)Yes (paid)Yes (paid)Yes (paid)
Mail client supportYes (IMAP, POP, SMTP)Yes, but through BridgeYes (IMAP, POP3)NoYes (IMAP, SMTP)
Security auditNoYes (2021, by Securitum)German BSIApparently, but not publishedApparently, but not published
Accepts crypto paymentsYes (BTC only)Yes (BTC only)NoNo (But ProxyStore gift cards acceptedYes (BTC only, but only personal accounts)
Pricing (lowest)$1.66Free (1 GB max storage)€1Free (1 GB max storage)$3

We've also listed the best free email services.

Best secure email provider FAQs

What is a secure email provider?

A secure email provider offers privacy and security to your emails with enhanced protection against unauthorized access, data breaches, and countless cyberattacks. Such providers are generally end-to-end encrypted and adhere to strict privacy standards, such as GDPR compliance.

These platforms are ideal for individuals, businesses, and organizations who want strong privacy like journalists, activists, and professionals dealing with sensitive data. However, keep in mind that the protection is sometimes limited to email content, meaning any attachments and external communication might require additional encryption tools.

Why is encryption important in email services?

Email services should encrypt their user's data to protect any sensitive information shared online via email. The protection helps you guard against different cyber threads like man-in-the-middle (MITM) attacks, phishing, and data breaches.

As a business, it helps you adhere to legal and industry standards such as GDPR, HIPAA, or CCPA. And, even when your emails are intercepted or stored in a compromised server, such platforms help your content remain unreadable as it requires a decryption key to unlock.

Which email provider is the most secure in 2025?

Proton Mail and Tuta are some of the most secure email providers in 2025. Proton Mail comes with zero-access encryption i.e. all email and attachments remain fully encrypted on their servers. This prevents any third parties or even the provider from accessing your files and conversations.

Similarly, Tuta operates under the strict privacy laws of Germany and offers post-quantum cryptography to future-proof its encryption against various threats posed by quantum computing. Both of these platforms come with a free plan offering limited storage and some useful features.

How we test

To determine the best secure email providers, I focused on these key criteria:

  • End-to-end encryption: only the sender and recipient can read emails
  • Data privacy and jurisdiction: providers based in countries with strong privacy laws
  • Multi-factor authentication (MFA): to add an extra layer of security against unauthorized access
  • Additional security features: providers with features like self-destructing emails, secure link confirmation, and encrypted file storage rank higher for comprehensive protection
  • Usability and reliability: secure services that balance strong security with ease of use, ensuring that users can implement advanced features without hassle

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Sead is a seasoned freelance journalist based in Sarajevo, Bosnia and Herzegovina. He writes about IT (cloud, IoT, 5G, VPN) and cybersecurity (ransomware, data breaches, laws and regulations). In his career, spanning more than a decade, he’s written for numerous media outlets, including Al Jazeera Balkans. He’s also held several modules on content writing for Represent Communications.

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