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303 lines
13 KiB
Markdown
303 lines
13 KiB
Markdown
---
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title: "電子郵件客戶端程式"
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icon: material/email-open
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description: 這些電子郵件客戶端尊重隱私並支持OpenPGP電子郵件加密。
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cover: email-clients.webp
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---
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<small>Protects against the following threat(s):</small>
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- [:material-server-network: 服務提供商](basics/common-threats.md#privacy-from-service-providers ""){.pg-teal}
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- [:material-target-account: 針對性攻擊](basics/common-threats.md#attacks-against-specific-individuals ""){.pg-red}
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The **email clients** we recommend support both [OpenPGP](encryption.md#openpgp) and strong authentication such as [Open Authorization (OAuth)](https://en.wikipedia.org/wiki/OAuth). OAuth allows you to use [Multi-Factor Authentication](basics/multi-factor-authentication.md) to prevent account theft.
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<details class="warning" markdown>
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<summary>電子郵件不提供前向保密</summary>
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當使用端到端加密（ E2EE ）技術（如OpenPGP ）時，電子郵件仍然會有一些未在電子郵件標頭中加密的[中繼數據](basics/email-security.md#email-metadata-overview)。
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OpenPGP 也不支援[前向保密](https://en.wikipedia.org/wiki/Forward_secrecy)，這意味著如果你或收件人的私鑰被盜，所有以前用它加密的訊息都會被曝光：[[如何保護我的私鑰？](basics/email-security.md)考慮使用提供前向保密的媒介：
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[即時通訊軟體](real-time-communication.md ""){.md-button}
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</details>
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## 跨平臺
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### Thunderbird
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Thunderbird** 是一個免費、開源、跨平臺的電子郵件、新聞組、新聞提要和聊天(XMPP、IRC、Matrix)客戶端，由Thunderbird 社區開發，之前由 Mozilla 基金會開發。
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[:octicons-home-16: Homepage](https://thunderbird.net){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://mozilla.org/privacy/thunderbird){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://support.mozilla.org/products/thunderbird){ .card-link title="Documentation" }
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[:octicons-code-16:](https://hg.mozilla.org/comm-central){ .card-link title="Source Code" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:fontawesome-brands-windows: Windows](https://thunderbird.net)
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- [:simple-apple: macOS](https://thunderbird.net)
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- [:simple-linux: Linux](https://thunderbird.net)
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- [:simple-flathub: Flathub](https://flathub.org/apps/details/org.mozilla.Thunderbird)
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</details>
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</div>
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#### 建議配置
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<div class="annotate" markdown>
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We recommend changing some of these settings to make Thunderbird a little more private.
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These options can be found in :material-menu: → **Settings** → **Privacy & Security**.
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##### Web Content
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- [ ] Uncheck **Remember websites and links I've visited**
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- [ ] Uncheck **Accept cookies from sites** (1)
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</div>
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1. You may need to keep this setting checked when you're logging in to some providers such as Gmail, or via an institution’s SSO. You should uncheck it once you log in successfully.
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##### Telemetry
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- [ ] Uncheck **Allow Thunderbird to send technical and interaction data to Mozilla**
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#### Thunderbird-user.js （進階）
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[`thunderbird-user.js`](https://github.com/HorlogeSkynet/thunderbird-user.js) is a set of configuration options that aims to disable as many of the web-browsing features within Thunderbird as possible in order to reduce attack surface and maintain privacy. Some of the changes are backported from the [Arkenfox project](desktop-browsers.md#arkenfox-advanced).
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## 平臺特定
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### Apple Mail (macOS)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Apple Mail** is included in macOS and can be extended to have OpenPGP support with [GPG Suite](encryption.md#gpg-suite), which adds the ability to send PGP-encrypted email.
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[:octicons-home-16: Homepage](https://support.apple.com/guide/mail/welcome/mac){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://apple.com/legal/privacy/en-ww){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://support.apple.com/mail){ .card-link title=Documentation}
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</details>
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</div>
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Apple Mail has the ability to load remote content in the background or block it entirely and hide your IP address from senders on [macOS](https://support.apple.com/guide/mail/mlhl03be2866/mac) and [iOS](https://support.apple.com/guide/iphone/iphf084865c7/ios).
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### Canary Mail (iOS)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Canary Mail** is a paid email client designed to make end-to-end encryption seamless with security features such as a biometric app lock.
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[:octicons-home-16: Homepage](https://canarymail.io){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://canarymail.io/privacy.html){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://canarymail.io/help){ .card-link title="Documentation" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=io.canarymail.android)
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- [:simple-appstore: App Store](https://apps.apple.com/app/id1155470386)
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- [:fontawesome-brands-windows: Windows](https://canarymail.io/downloads.html)
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- [:simple-apple: macOS](https://apps.apple.com/app/id1236045954)
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</details>
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</div>
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<details class="warning" markdown>
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<summary>警告</summary>
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Canary Mail only recently released a Windows and Android client, though we don't believe they are as stable as their iOS and Mac counterparts.
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</details>
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Canary Mail is closed-source. We recommend it due to the few choices there are for email clients on iOS that support PGP E2EE.
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### FairEmail (Android)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**FairEmail** is a minimal, open-source email app which uses open standards (IMAP, SMTP, OpenPGP) and minimizes data and battery usage.
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[:octicons-home-16: Homepage](https://email.faircode.eu){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://github.com/M66B/FairEmail/blob/master/PRIVACY.md){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://github.com/M66B/FairEmail/blob/master/FAQ.md){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/M66B/FairEmail){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://email.faircode.eu/donate){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=eu.faircode.email)
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- [:simple-github: GitHub](https://github.com/M66B/FairEmail/releases)
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</details>
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</div>
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### GNOME Evolution (GNOME)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Evolution** is a personal information management application that provides integrated mail, calendaring and address book functionality. Evolution has extensive [documentation](https://help.gnome.org/users/evolution/stable) to help you get started.
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[:octicons-home-16: Homepage](https://wiki.gnome.org/Apps/Evolution){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://wiki.gnome.org/Apps/Evolution/PrivacyPolicy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://help.gnome.org/users/evolution/stable){ .card-link title="Documentation" }
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[:octicons-code-16:](https://gitlab.gnome.org/GNOME/evolution){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://gnome.org/donate){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-flathub: Flathub](https://flathub.org/apps/details/org.gnome.Evolution)
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</details>
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</div>
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### K-9 Mail (Android)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**K-9 Mail** is an independent mail application that supports both POP3 and IMAP mailboxes, but only supports push mail for IMAP.
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In the future, K-9 Mail will be the [officially branded](https://k9mail.app/2022/06/13/K-9-Mail-and-Thunderbird.html) Thunderbird client for Android.
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[:octicons-home-16: Homepage](https://k9mail.app){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://k9mail.app/privacy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://docs.k9mail.app){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/thundernest/k-9){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://k9mail.app/contribute){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-googleplay: Google Play](https://play.google.com/store/apps/details?id=com.fsck.k9)
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- [:simple-github: GitHub](https://github.com/thundernest/k-9/releases)
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</details>
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</div>
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<div class="admonition warning" markdown>
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<p class="admonition-title">警告</p>
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When replying to someone on a mailing list, the "reply" option may also include the mailing list. For more information see [thundernest/k-9 #3738](https://github.com/thundernest/k-9/issues/3738).
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</div>
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### Kontact (KDE)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Kontact** is a personal information manager (PIM) application from the [KDE](https://kde.org) project. It provides a mail client, address book, RSS client, and an organizer.
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[:octicons-home-16: Homepage](https://kontact.kde.org){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://kde.org/privacypolicy-apps){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://kontact.kde.org/users){ .card-link title="Documentation" }
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[:octicons-code-16:](https://invent.kde.org/pim/kmail){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://kde.org/community/donations){ .card-link title="Contribute" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-linux: Linux](https://kontact.kde.org/download)
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- [:simple-flathub: Flathub](https://flathub.org/apps/details/org.kde.kontact)
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</details>
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</div>
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### Mailvelope (瀏覽器)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**Mailvelope** is a browser extension that enables the exchange of encrypted emails following the OpenPGP encryption standard.
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[:octicons-home-16: Homepage](https://mailvelope.com){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://mailvelope.com/privacy-policy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://mailvelope.com/faq){ .card-link title="Documentation" }
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[:octicons-code-16:](https://github.com/mailvelope/mailvelope){ .card-link title="Source Code" }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-firefoxbrowser: Firefox](https://addons.mozilla.org/firefox/addon/mailvelope)
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- [:simple-googlechrome: Chrome](https://chrome.google.com/webstore/detail/mailvelope/kajibbejlbohfaggdiogboambcijhkke)
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- [:fontawesome-brands-edge: Edge](https://microsoftedge.microsoft.com/addons/detail/mailvelope/dgcbddhdhjppfdfjpciagmmibadmoapc)
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</details>
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</div>
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### NeoMutt (CLI)
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<div class="admonition recommendation" markdown>
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{ align=right }
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**NeoMutt** is an open-source command line email reader for Linux and BSD. It's a fork of [Mutt](https://en.wikipedia.org/wiki/Mutt_(email_client)) with added features.
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NeoMutt is a text-based client that has a steep learning curve. It is, however, very customizable.
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[:octicons-home-16: Homepage](https://neomutt.org){ .md-button .md-button--primary }
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[:octicons-info-16:](https://neomutt.org/guide){ .card-link title=Documentation}
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[:octicons-code-16:](https://github.com/neomutt/neomutt){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://paypal.com/paypalme/russon){ .card-link title=Contribute }
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<details class="downloads" markdown>
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<summary>Downloads</summary>
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- [:simple-apple: macOS](https://neomutt.org/distro)
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- [:simple-linux: Linux](https://neomutt.org/distro)
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</details>
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</div>
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## 標準
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**請注意，我們所推薦專案沒有任何瓜葛。 ** 除了 [標準準則](about/criteria.md)外，我們還發展出一套明確要求以提出客觀建議。 我們建議您在選擇使用項目之前先熟悉此列表，並進行自己的研究，以確保它是您的正確選擇。
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### 最低合格要求
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- Apps developed for open-source operating systems must be open source.
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- Must not collect telemetry, or have an easy way to disable all telemetry.
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- Must support OpenPGP message encryption.
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### 最佳案例
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最佳案例標準代表了我們希望從這個類別的完美項目應具備的功能。 推薦產品可能沒有此功能，但若有這些功能則會讓排名更為提高。
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- Should be open source.
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- Should be cross-platform.
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- Should not collect any telemetry by default.
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- Should support OpenPGP natively, i.e. without extensions.
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- Should support storing OpenPGP encrypted emails locally.
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