Internet Mail is an e-mail client software for Microsoft Windows developed by the Japanese company RimArts from Matsudo, Chiba.

achieved early success in East Asia due to good support for CJKV characters and its ability to handle many languages has created interest in Europe, as evidenced by the translations to French and German by volunteers.

HTML mode can be selected via the editor on a message-by-message basis or templates can be defined for default or occasional use.

This feature of templates can be customized at the account level, by folder, or for a specific topic.

provides a filtering manager for both outbound and inbound messages, allows date-dependent tasks to be assigned to messages, provides support for touch screens and the "toast" feature introduced with Windows 8, provides a mailing list manager and the ability to create portable versions of Becky!.