Create and Save Outlook MSG files

Aspose.Email for C++ allows developers to programmatically create, modify, and save Outlook MSG files with full control over message properties and formatting. You can generate MSG messages from scratch, add attachments, use rich text (RTF) bodies, save drafts, and optimize message size using body compression options.

Create and Save Outlook Messages

The MailMessage class provides the Save() method to save MSG files to disk or stream. You can define the sender, recipients, subject, and body, and then convert the message into the Outlook MSG format using the MapiMessage class.

The following code sample demonstrates how to create a simple email message by setting the sender, recipient, subject, and body, then convert this email message into a MAPI message compatible with Outlook, and finally save it as an MSG file.

Create MSG Files with RTF Body

Outlook messages support Rich Text Format (RTF) bodies that retain advanced text formatting such as bold, underline, and headings. Aspose.Email automatically converts the HtmlBody of a MailMessage into RTF when saving as MSG, preserving all formatting.

The following code sample demonstrates how to create an email message with an HTML-formatted body, including headers and styled text, then convert this email into a MAPI Outlook message, and save it as an MSG file. This allows generating Outlook-compatible email files that preserve rich text formatting using Aspose.Email.

Save a Message in Draft Status

You can mark a message as draft by setting the appropriate flag before saving it as MSG. Drafts can later be reopened and edited.

Optimizing with Body Compression

Aspose.Email provides body compression for MSG files through the MapiConversionOptions class. Enabling compression creates smaller MSG and PST files but can slightly slow down processing.

The following code sample demonstrates how to load an existing email message from a file, create conversion options with body compression enabled, and convert the loaded MailMessage to a MapiMessage format using these options. This process optimizes the email body size during conversion for better handling within Outlook message files.

  • UseBodyCompression = true → smaller file size, slower performance.
  • UseBodyCompression = false → faster conversion, larger output.
Load, Parse Outlook MSG Files Using Aspose.Email for C++