Mozilla Seamonkey 是一个功能强大的开源（免费）电子邮件客户端和互联网套件。 Seamonkey 由 Mozilla 基金会于 2005 年开发，由 Seamonkey 委员会管理。

SeaMonkey 是使用相同的源代码开发的，它强调了 Mozilla Thunderbird 套件和 Firefox Web 浏览器的基础。 SeaMonkey 支持 Windows OS X 和 Linux 平台。 它支持 MBOX (.mbox) 文件格式来保存其电子邮件和其他文件，并适用于 POP3、IMAP 和 SMTP 协议。

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为什么使用 Mozilla SeaMonkey？

SeaMonkey 是一个一体化的互联网套件。 它支持电子邮件、浏览器、新闻客户端、HTML 编辑器、IRC 聊天、垃圾邮件控制器、消息过滤器、Web 提要阅读器、地址簿、Web 开发工具等。

使用配置文件管理器的高质量功能，例如消息过滤器、垃圾邮件检测器等。它允许您在一个地方管理多个电子邮件帐户。

Mozilla SeaMonkey 特点

Mozilla SeaMonkey 是一个完整的互联网应用程序套件，提供了多种功能和有用的工具。

• 它有一个多功能的互联网浏览器，包括标签式浏览、弹出窗口阻止、检测提要、酒吧的智能定位以及许多其他功能。
• SeaMonkey 互联网套件有一个弹出窗口拦截器，可让您在没有弹出窗口或广告的情况下在线工作。
• 它有一个垃圾邮件控制器，可以让我们远离垃圾邮件/垃圾邮件。
• 它还在您的消息中心内有一个用于 RSS 和 Atom 提要的阅读器，可让您轻松阅读来自整个网络的信息。

了解 SeaMonkey 如何将其数据存储在您的设备中

SeaMonkey 主要使用 .mbox 文件扩展名用于电子邮件文件夹和 .mab 文件扩展名用于存储地址簿联系人。除此之外，SeaMonkey 还使用 EML (.eml) 来处理电子邮件。由于存在如此多的通用数据文件格式；更容易从 SeaMonkey 迁移到其他各种电子邮件平台，如 MS Outlook、Windows Live Mail、Thunderbird、Lotus Notes 等。

由于 Microsoft Outlook 是最常用的电子邮件客户端之一，因此用户很多时候都在寻找一种可以通过 Outlook 帐户访问 Mozilla Seamonkey 邮件的方法。因此，当您想切换到 Outlook 时，您必须将 SeaMonkey 数据迁移到 Outlook。为此，您可以顺利地将 MBOX 转换为 PST 以在 MS Outlook 中打开您的邮件。您可以毫不费力地进行完整转换的最佳技术是使用 MBOX 到 PST 转换器工具。

除此之外，如果您只想将 SeaMonkey 邮件迁移到 MS Outlook，那么 EML 到 PST 是一个很好的方法。选择要以 EML 文件格式导出和导入的电子邮件。创建 EML 文件后，您可以使用网络上廉价的转换向导轻松地将 EML 转换为 PST。

另一方面，如果您是 SeaMonkey 用户并且想要将一些 Outlook 数据文件导入另一种数据文件格式，那么您可以轻松完成。例如，假设您有一个无法访问的 OST/PST 文件，但您想在 SeaMonkey 中打开它，然后只需将 OST/PST 文件转换为 MBOX 并将 MBOX 导入 SeaMonkey。或者，如果您有一些 .eml 格式的旧电子邮件备份，那么您也可以将它们导入 SeaMonkey。同样，您可以将 NSF、PST、OST 和 MSG 转换为 MBOX 或 EML 格式以将它们导入到 SeaMonkey。

最后

SeaMonkey 本身是一个很好的电子邮件和相关工作应用程序。 因此; 几乎不需要迁移到其他一些平台。 但如果您有 SeaMonkey 邮件或数据库的旧备份，则可能需要迁移。

SeaMonkey 许可证

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What’s New in SeaMonkey 2.53.21
SeaMonkey 2.53.21 contains (among other changes) the following changes relative to SeaMonkey 2.53.20:
Unable to load JSON Bookmarks file, Open/Cancel do the same thing bug 1940204.
Move replaceVars helper into menu-manager.js for cZ bug 1937379.
Remove dumpObject helper from utils.js in cZ bug 1937380.
Remove toOpenWindowByType helper from utils.js in cZ bug 1937382.
Fix makeLogName helper to not encode twice in prefs.js in cZ bug 1937387.
Remove use of escapeFileName helper and tidy up pref_mungeName helper in cZ bug 1937395.
Add helper to file-utils.js for ensuring an nsIFile is returned in cZ bug 1937397.
Remove unused http.js file from cZ bug 1937890.
Remove unused IRC tests from static.js in cZ bug 1937896.
Switch from deprecated escape/unescape in cZ bug 1938933.
Tidy up use of prefBranch outside of pref-manager in cZ bug 1938935.
Make use of pref fallbacks in pref-manager in cZ bug 1938937.
Remove unused edit context menu from cZ bug 1939929.
Use XPCOMUtils.generateQI in connection-xpcom in cZ bug 1939930.
Merge menus.xul, popups.xul and scripts.xul into chatzilla.xul bug 1939958.
Make use of toSOutputStream and toSInputStream helpers in DCC code in cZ bug 1939965.
Stop hard-coding commandkey for reloadui in cZ bug 1939968.
Use suite’s FillInHTMLTooltip helper instead of having own version in cZ bug 1939969.
Split custom-away from other away/back commands in cZ bug 1942655.
Remove ChatZilla Homepage link from Help menu and about command in cZ bug 1942916.
Re-arrange toolbar menus in cZ bug 1943783.
Remove ChatZilla Homepage link from about and prefs dialogs in cZ bug 1943844.
Use custom controller for userlist and tidy up some controller use in cZ bug 1945325.
Make use of observes for show/hide elements in cZ bug 1945378.
Don’t dynamically create focus-input key element in cZ bug 1947028.
Remove unused toolbar creation code in cZ bug 1947030.
Remove unused updateMenus code from cZ bug 1947031.
Clean up whitespaces in cZ package manifest bug 1947040.
Remove unused uninstallKeys code from cZ bug 1950002.
Use node.remove(), especially instead of node.parentNode.removeChild(node) in cZ bug 1951250.
Remove __cz_condition from cZ bug 1951253.
Remove outputWindowURL pref from cZ bug 1951256.
Remove unused JS tests in cZ bug 1951297.
Use includes, startsWith and endsWith instead of indexOf and substr in cZ bug 1951302.
Use {} and [] instead of new Object() and new Array() in cZ bug 1951303.
Fixup function naming for lint in cZ bug 1955141.
Fixup method naming for lint in cZ bug 1955767.
Remove old Mozilla 1.0 code from updateAppMotif in cZ bug 1955771.
Use throw Components.Exception in cZ bug 1955774.
Migrate output-window from HTML to XHTML to make localisation more standard in cZ bug 1955825.
Merge munger.js into mungers.js in cZ bug 1956373.
Remove unused tagName from mungers.js in cZ bug 1956374.
Flatten directory structure in cZ bug 1956375.
Tidy up about dialog page in cZ bug 1956376.
Add helper to commands.js for sending CTCP commands in cZ bug 1956377.
Migrate to standard menus for menu toolbar in cZ bug 1957763.
Install plugin dialog broken in cZ bug 1961599.
cZ change nick menu not working bug 1962112.
Away status isn’t reflected correctly in all channels in cZ bug 1962234.
Fix dark motif userlist in cZ bug 1967072.
SeaMonkey Composer adds moz-do-not-send attribute for links and images bug 1827146.
Use menu_Toolbars overlay for navigatorOverlay and console bug 1945335.
Remove defunct 2.53 prerelease builds from debugQA extension bug 1947043.
Handling of MOZ_LANGPACK_CONTRIBUTORS in defines.inc files should be less custom bug 1951101.
Control + U shortcut for underlined text is not working bug 1872514.
Context menu search (with default search engine) does not work in the content area of a message compose or SM-Composer window bug 1062092.
The following bugs were fixed in our branch of the Gecko source code only:
on FreeBSD sqlite3 fails to link for missing math functions bug 1944954.
Expand init.configure to use version_package.txt to set MOZ_PKG_VERSION bug 1952757.
Change supported msvc Compilers for SeaMonkey 2.53 bug 1954176.
SeaMonkey 2.53.21 contains (among other changes) the following major changes relative to SeaMonkey 2.49.5:
The Bookmarks Manager has switched its name to Library, and now also includes the History list. When History is invoked, the Library will be shown with the History list selected. The extensive modifications were needed because of Mozilla Gecko platform API changes.
Download Manager has been migrated to a new API. Although it looks pretty much the same as before, the search option is missing and some other minor details work differently. The previous downloads history is removed during the upgrade.
The layout panel was added to the CSS Grid tools.
TLS 1.3 is the default SSL version now.
Support for all NPAPI plugins like Flash, Java and Silverlight has been removed. For displaying pdf files in the browser you can use pdf.js-seamonkey from Isaac Schemm.
SeaMonkey now uses a new api for formatting regional data like time and date. Default is to use the application locale of the current SeaMonkey build. If you use a language pack or a different OS formatting this is usually not desired. You can change the formatting from the application locale to the regional settings locale (OS) in the preferences dialog under “Appearance”.
SeaMonkey 2.53.21 uses the same backend as Firefox and contains the relevant Firefox 60.8 security fixes.
SeaMonkey 2.53.21 shares most parts of the mail and news code with Thunderbird. Please read the Thunderbird 60.8.0 release notes for specific security fixes in this release.
Additional important security fixes up to Current Firefox 115.23 and Thunderbird 115.23 ESR plus many enhancements have been backported. We will continue to enhance SeaMonkey security in subsequent 2.53.x beta and release versions as fast as we are able to.
SeaMonkey-specific changes
SeaMonkey now uses gtk3 on Linux. If you experience a problem because of this please file a bug. Please try another OS theme first. Some of them are buggy and cause problems with SeaMonkey, Thunderbird and Firefox.