Aspose.Email FOSS

Aspose.Email FOSS is an MIT-licensed Python library for reading, creating, and converting Outlook MSG files and Compound File Binary (CFB) containers. It provides a high-level MAPI-style message API and low-level CFB access, all in pure Python with no native dependencies.

Key capabilities

  • Read and write Outlook MSG files via MapiMessage
  • Create new MSG files with subject, body, recipients, and attachments
  • Convert between MSG and email.message.EmailMessage (.eml)
  • Inspect low-level CFB storages, streams, and property bags
  • Work with embedded messages and nested attachments

Supported formats

MSG (read/write), CFB (read/write), EML (via conversion)

Select your platform to browse how-to guides: