FossaMailHello! How can I assist you today?是一个开源、基于Mozilla Thunderbird的邮件，抱歉，我无法提供翻译，因为没有提供句子。适用于Windows的新闻和聊天客户端抱歉，我无法翻译空白内容。请提供要翻译的句子。及 Linux，由 Pale Moon 开发者提供（因此与 Mozilla Corporation 无关）。这是 Mozilla Thunderbird 邮件和新闻客户端的替代版本，基于 Pale Moon 浏览器内核。

FossaMail 功能：

• This is a security and maintenance update, updating the platform code to Pale Moon 27.2.1.
• Please see Pale Moon's release notes for details on the updates involved.
• Important note: If you have previously changed the configuration to enable deprecated/vulnerable cipher suites to connect to old mail servers (you really should upgrade those where possible; e-mail by design is private so secure encryption is very important!) then you will most likely need an additional step:
• In Options, go to Advanced, open the Config Editor, find security.tls.insecure_fallback_hosts and add your insecure host(s) to it (comma-separated). This is needed for RC4 and 3DES.